diff --git a/package-lock.json b/package-lock.json
index db7110f..3d87ad7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -24,9 +24,9 @@
       }
     },
     "acorn": {
-      "version": "5.3.0",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.3.0.tgz",
-      "integrity": "sha512-Yej+zOJ1Dm/IMZzzj78OntP/r3zHEaKcyNoU2lAaxPtrseM6rF0xwqoz5Q5ysAiED9hTjI2hgtvLXitlCN1/Ug==",
+      "version": "5.7.3",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.3.tgz",
+      "integrity": "sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw==",
       "dev": true
     },
     "acorn-jsx": {
@@ -47,9 +47,9 @@
       }
     },
     "ajv": {
-      "version": "5.5.1",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.5.1.tgz",
-      "integrity": "sha1-s4u4h22ehr7plJVqBOch6IskjrI=",
+      "version": "5.5.2",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.5.2.tgz",
+      "integrity": "sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=",
       "dev": true,
       "requires": {
         "co": "^4.6.0",
@@ -65,9 +65,9 @@
       "dev": true
     },
     "ansi-escapes": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.0.0.tgz",
-      "integrity": "sha512-O/klc27mWNUigtv0F8NJWbLF00OcegQalkqKURWdosW08YZKi4m6CnSUSvIZG1otNJbTWhN01Hhz389DW7mvDQ==",
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.2.0.tgz",
+      "integrity": "sha512-cBhpre4ma+U0T1oM5fXg7Dy1Jw7zzwv7lt/GoCpr+hDQJoYnKVPLL4dCvSEFMmQurOQvSrwT7SL/DAlhBI97RQ==",
       "dev": true
     },
     "ansi-regex": {
@@ -96,9 +96,9 @@
       }
     },
     "argparse": {
-      "version": "1.0.9",
-      "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.9.tgz",
-      "integrity": "sha1-c9g7wmP4bpf4zE9rrhsOkKfSLIY=",
+      "version": "1.0.10",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
+      "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
       "dev": true,
       "requires": {
         "sprintf-js": "~1.0.2"
@@ -109,27 +109,6 @@
       "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
       "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
     },
-    "array-union": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/array-union/-/array-union-1.0.2.tgz",
-      "integrity": "sha1-mjRBDk9OPaI96jdb5b5w8kd47Dk=",
-      "dev": true,
-      "requires": {
-        "array-uniq": "^1.0.1"
-      }
-    },
-    "array-uniq": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/array-uniq/-/array-uniq-1.0.3.tgz",
-      "integrity": "sha1-r2rId6Jcx/dOBYiUdThY39sk/bY=",
-      "dev": true
-    },
-    "arrify": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/arrify/-/arrify-1.0.1.tgz",
-      "integrity": "sha1-iYUI2iIm84DfkEcoRWhJwVAaSw0=",
-      "dev": true
-    },
     "asn1": {
       "version": "0.2.4",
       "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.4.tgz",
@@ -237,6 +216,12 @@
         "concat-map": "0.0.1"
       }
     },
+    "buffer-from": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.1.tgz",
+      "integrity": "sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A==",
+      "dev": true
+    },
     "builtin-modules": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/builtin-modules/-/builtin-modules-1.1.1.tgz",
@@ -292,32 +277,32 @@
       "integrity": "sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw="
     },
     "chalk": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.3.0.tgz",
-      "integrity": "sha512-Az5zJR2CBujap2rqXGaJKaPHyJ0IrUimvYNX+ncCy8PJP4ltOGTrHUIo097ZaL2zMeKYpiCdqDvS6zdrTFok3Q==",
+      "version": "2.4.2",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
+      "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
       "dev": true,
       "requires": {
-        "ansi-styles": "^3.1.0",
+        "ansi-styles": "^3.2.1",
         "escape-string-regexp": "^1.0.5",
-        "supports-color": "^4.0.0"
+        "supports-color": "^5.3.0"
       },
       "dependencies": {
         "ansi-styles": {
-          "version": "3.2.0",
-          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.0.tgz",
-          "integrity": "sha512-NnSOmMEYtVR2JVMIGTzynRkkaxtiq1xnFBcdQD/DnNCYPoEPsVJhM98BDyaoNOQIi7p4okdi3E27eN7GQbsUug==",
+          "version": "3.2.1",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
+          "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
           "dev": true,
           "requires": {
             "color-convert": "^1.9.0"
           }
         },
         "supports-color": {
-          "version": "4.5.0",
-          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-4.5.0.tgz",
-          "integrity": "sha1-vnoN5ITexcXN34s9WRJQRJEvY1s=",
+          "version": "5.5.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
+          "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
           "dev": true,
           "requires": {
-            "has-flag": "^2.0.0"
+            "has-flag": "^3.0.0"
           }
         }
       }
@@ -374,12 +359,12 @@
       "integrity": "sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c="
     },
     "color-convert": {
-      "version": "1.9.1",
-      "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.1.tgz",
-      "integrity": "sha512-mjGanIiwQJskCC18rPR6OmrZ6fm2Lc7PeGFYwCmy5J34wC6F1PzdGL6xeMfmgicfYcNLGuVFA3WzXtIDCQSZxQ==",
+      "version": "1.9.3",
+      "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.3.tgz",
+      "integrity": "sha512-QfAUtd+vFdAtFQcC8CCyYt1fYWxSqAiK2cSD6zDB8N3cpsEBAvRxp9zOGg6G/SHHJYAT88/az/IuDGALsNVbGg==",
       "dev": true,
       "requires": {
-        "color-name": "^1.1.1"
+        "color-name": "1.1.3"
       }
     },
     "color-name": {
@@ -402,11 +387,12 @@
       "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s="
     },
     "concat-stream": {
-      "version": "1.6.0",
-      "resolved": "https://registry.npmjs.org/concat-stream/-/concat-stream-1.6.0.tgz",
-      "integrity": "sha1-CqxmL9Ur54lk1VMvaUeE5wEQrPc=",
+      "version": "1.6.2",
+      "resolved": "https://registry.npmjs.org/concat-stream/-/concat-stream-1.6.2.tgz",
+      "integrity": "sha512-27HBghJxjiZtIk3Ycvn/4kbJk/1uZuJFfuPEns6LaEvpvG1f0hTea8lilrouyo9mVc2GWdcEZ8OLoGmSADlrCw==",
       "dev": true,
       "requires": {
+        "buffer-from": "^1.0.0",
         "inherits": "^2.0.3",
         "readable-stream": "^2.2.2",
         "typedarray": "^0.0.6"
@@ -499,29 +485,6 @@
       "integrity": "sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ=",
       "dev": true
     },
-    "del": {
-      "version": "2.2.2",
-      "resolved": "https://registry.npmjs.org/del/-/del-2.2.2.tgz",
-      "integrity": "sha1-wSyYHQZ4RshLyvhiz/kw2Qf/0ag=",
-      "dev": true,
-      "requires": {
-        "globby": "^5.0.0",
-        "is-path-cwd": "^1.0.0",
-        "is-path-in-cwd": "^1.0.0",
-        "object-assign": "^4.0.1",
-        "pify": "^2.0.0",
-        "pinkie-promise": "^2.0.0",
-        "rimraf": "^2.2.8"
-      },
-      "dependencies": {
-        "pify": {
-          "version": "2.3.0",
-          "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
-          "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw=",
-          "dev": true
-        }
-      }
-    },
     "delayed-stream": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
@@ -620,9 +583,9 @@
       "dev": true
     },
     "eslint": {
-      "version": "4.14.0",
-      "resolved": "https://registry.npmjs.org/eslint/-/eslint-4.14.0.tgz",
-      "integrity": "sha512-Ul6CSGRjKscEyg0X/EeNs7o2XdnbTEOD1OM8cTjmx85RPcBJQrEhZLevhuJZNAE/vS2iVl5Uhgiqf3h5uLMCJQ==",
+      "version": "4.18.2",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-4.18.2.tgz",
+      "integrity": "sha512-qy4i3wODqKMYfz9LUI8N2qYDkHkoieTbiHpMrYUI/WbjhXJQr7lI4VngixTgaG+yHX+NBCv7nW4hA0ShbvaNKw==",
       "dev": true,
       "requires": {
         "ajv": "^5.3.0",
@@ -631,7 +594,7 @@
         "concat-stream": "^1.6.0",
         "cross-spawn": "^5.1.0",
         "debug": "^3.1.0",
-        "doctrine": "^2.0.2",
+        "doctrine": "^2.1.0",
         "eslint-scope": "^3.7.1",
         "eslint-visitor-keys": "^1.0.0",
         "espree": "^3.5.2",
@@ -660,18 +623,24 @@
         "semver": "^5.3.0",
         "strip-ansi": "^4.0.0",
         "strip-json-comments": "~2.0.1",
-        "table": "^4.0.1",
+        "table": "4.0.2",
         "text-table": "~0.2.0"
       },
       "dependencies": {
         "debug": {
-          "version": "3.1.0",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
-          "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+          "version": "3.2.6",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.6.tgz",
+          "integrity": "sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==",
           "dev": true,
           "requires": {
-            "ms": "2.0.0"
+            "ms": "^2.1.1"
           }
+        },
+        "ms": {
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+          "dev": true
         }
       }
     },
@@ -741,9 +710,9 @@
       "dev": true
     },
     "eslint-scope": {
-      "version": "3.7.1",
-      "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-3.7.1.tgz",
-      "integrity": "sha1-PWPD7f2gLgbgGkUq2IyqzHzctug=",
+      "version": "3.7.3",
+      "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-3.7.3.tgz",
+      "integrity": "sha512-W+B0SvF4gamyCTmUc+uITPY0989iXVfKvhwtmJocTaYoc/3khEHmEmvfY/Gn9HA9VV75jrQECsHizkNw1b68FA==",
       "dev": true,
       "requires": {
         "esrecurse": "^4.1.0",
@@ -751,50 +720,49 @@
       }
     },
     "eslint-visitor-keys": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz",
-      "integrity": "sha512-qzm/XxIbxm/FHyH341ZrbnMUpe+5Bocte9xkmFMzPMjRaZMcXww+MpBptFvtU+79L362nqiLhekCxCxDPaUMBQ==",
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-1.1.0.tgz",
+      "integrity": "sha512-8y9YjtM1JBJU/A9Kc+SbaOV4y29sSWckBwMHa+FGtVj5gN/sbnKDf6xJUl+8g7FAij9LVaP8C24DUiH/f/2Z9A==",
       "dev": true
     },
     "espree": {
-      "version": "3.5.2",
-      "resolved": "https://registry.npmjs.org/espree/-/espree-3.5.2.tgz",
-      "integrity": "sha512-sadKeYwaR/aJ3stC2CdvgXu1T16TdYN+qwCpcWbMnGJ8s0zNWemzrvb2GbD4OhmJ/fwpJjudThAlLobGbWZbCQ==",
+      "version": "3.5.4",
+      "resolved": "https://registry.npmjs.org/espree/-/espree-3.5.4.tgz",
+      "integrity": "sha512-yAcIQxtmMiB/jL32dzEp2enBeidsB7xWPLNiw3IIkpVds1P+h7qF9YwJq1yUNzp2OKXgAprs4F61ih66UsoD1A==",
       "dev": true,
       "requires": {
-        "acorn": "^5.2.1",
+        "acorn": "^5.5.0",
         "acorn-jsx": "^3.0.0"
       }
     },
     "esprima": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.0.tgz",
-      "integrity": "sha512-oftTcaMu/EGrEIu904mWteKIv8vMuOgGYo7EhVJJN00R/EED9DCua/xxHRdYnKtcECzVg7xOWhflvJMnqcFZjw==",
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.1.tgz",
+      "integrity": "sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==",
       "dev": true
     },
     "esquery": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/esquery/-/esquery-1.0.0.tgz",
-      "integrity": "sha1-z7qLV9f7qT8XKYqKAGoEzaE9gPo=",
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/esquery/-/esquery-1.0.1.tgz",
+      "integrity": "sha512-SmiyZ5zIWH9VM+SRUReLS5Q8a7GxtRdxEBVZpm98rJM7Sb+A9DVCndXfkeFUd3byderg+EbDkfnevfCwynWaNA==",
       "dev": true,
       "requires": {
         "estraverse": "^4.0.0"
       }
     },
     "esrecurse": {
-      "version": "4.2.0",
-      "resolved": "https://registry.npmjs.org/esrecurse/-/esrecurse-4.2.0.tgz",
-      "integrity": "sha1-+pVo2Y04I/mkHZHpAtyrnqblsWM=",
+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/esrecurse/-/esrecurse-4.2.1.tgz",
+      "integrity": "sha512-64RBB++fIOAXPw3P9cy89qfMlvZEXZkqqJkjqqXIvzP5ezRZjW+lPWjw35UX/3EhUPFYbg5ER4JYgDw4007/DQ==",
       "dev": true,
       "requires": {
-        "estraverse": "^4.1.0",
-        "object-assign": "^4.0.1"
+        "estraverse": "^4.1.0"
       }
     },
     "estraverse": {
-      "version": "4.2.0",
-      "resolved": "https://registry.npmjs.org/estraverse/-/estraverse-4.2.0.tgz",
-      "integrity": "sha1-De4/7TH81GlhjOc0IJn8GvoL2xM=",
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/estraverse/-/estraverse-4.3.0.tgz",
+      "integrity": "sha512-39nnKffWz8xN1BU/2c79n9nB9HDzo0niYUqx6xyqUnyoAnQyyWpOTdZEeiCch8BBu515t4wp9ZmgVfVhn9EBpw==",
       "dev": true
     },
     "esutils": {
@@ -851,9 +819,9 @@
       "integrity": "sha512-fjquC59cD7CyW6urNXK0FBufkZcoiGG80wTuPujX590cB5Ttln20E2UB4S/WARVqhXffZl2LNgS+gQdPIIim/g=="
     },
     "external-editor": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/external-editor/-/external-editor-2.1.0.tgz",
-      "integrity": "sha512-E44iT5QVOUJBKij4IIV3uvxuNlbKS38Tw1HiupxEIHPv9qtC2PrDYohbXV5U+1jnfIXttny8gUhj+oZvflFlzA==",
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/external-editor/-/external-editor-2.2.0.tgz",
+      "integrity": "sha512-bSn6gvGxKt+b7+6TKEv1ZycHleA7aHhRHyAqJyp5pbUFuYYNIzpZnQDk7AsYckyWdEnTeAnay0aCy2aV6iTk9A==",
       "dev": true,
       "requires": {
         "chardet": "^0.4.0",
@@ -867,9 +835,9 @@
       "integrity": "sha1-lpGEQOMEGnpBT4xS48V06zw+HgU="
     },
     "fast-deep-equal": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-1.0.0.tgz",
-      "integrity": "sha1-liVqO8l1WV6zbYLpkp0GDYk0Of8=",
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz",
+      "integrity": "sha1-wFNHeBfIa1HaqFPIHgWbcz0CNhQ=",
       "dev": true
     },
     "fast-json-stable-stringify": {
@@ -927,14 +895,14 @@
       }
     },
     "flat-cache": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/flat-cache/-/flat-cache-1.3.0.tgz",
-      "integrity": "sha1-0wMLMrOBVPTjt+nHCfSQ9++XxIE=",
+      "version": "1.3.4",
+      "resolved": "https://registry.npmjs.org/flat-cache/-/flat-cache-1.3.4.tgz",
+      "integrity": "sha512-VwyB3Lkgacfik2vhqR4uv2rvebqmDvFu4jlN/C1RzWoJEo8I7z4Q404oiqYCkq41mni8EzQnm95emU9seckwtg==",
       "dev": true,
       "requires": {
         "circular-json": "^0.3.1",
-        "del": "^2.0.2",
         "graceful-fs": "^4.1.2",
+        "rimraf": "~2.6.2",
         "write": "^0.2.1"
       }
     },
@@ -1072,33 +1040,11 @@
       }
     },
     "globals": {
-      "version": "11.1.0",
-      "resolved": "https://registry.npmjs.org/globals/-/globals-11.1.0.tgz",
-      "integrity": "sha512-uEuWt9mqTlPDwSqi+sHjD4nWU/1N+q0fiWI9T1mZpD2UENqX20CFD5T/ziLZvztPaBKl7ZylUi1q6Qfm7E2CiQ==",
+      "version": "11.12.0",
+      "resolved": "https://registry.npmjs.org/globals/-/globals-11.12.0.tgz",
+      "integrity": "sha512-WOBp/EEGUiIsJSp7wcv/y6MO+lV9UoncWqxuFfm8eBwzWNgyfBd6Gz+IeKQ9jCmyhoH99g15M3T+QaVHFjizVA==",
       "dev": true
     },
-    "globby": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/globby/-/globby-5.0.0.tgz",
-      "integrity": "sha1-69hGZ8oNuzMLmbz8aOrCvFQ3Dg0=",
-      "dev": true,
-      "requires": {
-        "array-union": "^1.0.1",
-        "arrify": "^1.0.0",
-        "glob": "^7.0.3",
-        "object-assign": "^4.0.1",
-        "pify": "^2.0.0",
-        "pinkie-promise": "^2.0.0"
-      },
-      "dependencies": {
-        "pify": {
-          "version": "2.3.0",
-          "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
-          "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw=",
-          "dev": true
-        }
-      }
-    },
     "got": {
       "version": "8.0.1",
       "resolved": "https://registry.npmjs.org/got/-/got-8.0.1.tgz",
@@ -1185,9 +1131,9 @@
       }
     },
     "has-flag": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-2.0.0.tgz",
-      "integrity": "sha1-6CB68cx7MNRGzHC3NLXovhj4jVE=",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
+      "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0=",
       "dev": true
     },
     "has-symbol-support-x": {
@@ -1253,9 +1199,9 @@
       "integrity": "sha512-oTZqweIP51xaGPI4uPa56/Pri/480R+mo7SeU+YETByQNhDG55ycFyNLIgta9vXhILrxXDmF7ZGhqZIcuN0gJQ=="
     },
     "ignore": {
-      "version": "3.3.7",
-      "resolved": "https://registry.npmjs.org/ignore/-/ignore-3.3.7.tgz",
-      "integrity": "sha512-YGG3ejvBNHRqu0559EOxxNFihD0AjpvHlC/pdGKd3X3ofe+CoJkYazwNJYTNebqpPKN+VVQbh4ZFn1DivMNuHA==",
+      "version": "3.3.10",
+      "resolved": "https://registry.npmjs.org/ignore/-/ignore-3.3.10.tgz",
+      "integrity": "sha512-Pgs951kaMm5GXP7MOvxERINe3gsaVjUWFm+UZPSq9xYriQAksyhg0csnS0KXSNRD5NmNdapXEpjxG49+AKh/ug==",
       "dev": true
     },
     "ignore-walk": {
@@ -1352,30 +1298,6 @@
       "resolved": "https://registry.npmjs.org/is-object/-/is-object-1.0.1.tgz",
       "integrity": "sha1-iVJojF7C/9awPsyF52ngKQMINHA="
     },
-    "is-path-cwd": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/is-path-cwd/-/is-path-cwd-1.0.0.tgz",
-      "integrity": "sha1-0iXsIxMuie3Tj9p2dHLmLmXxEG0=",
-      "dev": true
-    },
-    "is-path-in-cwd": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/is-path-in-cwd/-/is-path-in-cwd-1.0.0.tgz",
-      "integrity": "sha1-ZHdYK4IU1gI0YJRWcAO+ip6sBNw=",
-      "dev": true,
-      "requires": {
-        "is-path-inside": "^1.0.0"
-      }
-    },
-    "is-path-inside": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/is-path-inside/-/is-path-inside-1.0.1.tgz",
-      "integrity": "sha1-jvW33lBDej/cprToZe96pVy0gDY=",
-      "dev": true,
-      "requires": {
-        "path-is-inside": "^1.0.1"
-      }
-    },
     "is-plain-obj": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/is-plain-obj/-/is-plain-obj-1.1.0.tgz",
@@ -1388,9 +1310,9 @@
       "dev": true
     },
     "is-resolvable": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/is-resolvable/-/is-resolvable-1.0.1.tgz",
-      "integrity": "sha512-y5CXYbzvB3jTnWAZH1Nl7ykUWb6T3BcTs56HUruwBf8MhF56n1HWqhDWnVFo8GHrUPDgvUUNVhrc2U8W7iqz5g==",
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/is-resolvable/-/is-resolvable-1.1.0.tgz",
+      "integrity": "sha512-qgDYXFSR5WvEfuS5dMj6oTMEbrrSaM0CrFk2Yiq/gXnBvD9pMa2jGXxyhGLfvhZpuMZe18CJpFxAt3CRs42NMg==",
       "dev": true
     },
     "is-retry-allowed": {
@@ -1565,9 +1487,9 @@
       "integrity": "sha1-TjNms55/VFfjXxMkvfb4jQv8cwY="
     },
     "lru-cache": {
-      "version": "4.1.1",
-      "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-4.1.1.tgz",
-      "integrity": "sha512-q4spe4KTfsAS1SUHLO0wz8Qiyf1+vMIAgpRYioFYDMNqKfHQbg+AVDH3i4fvpl71/P1L0dBl+fQi+P37UYf0ew==",
+      "version": "4.1.5",
+      "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-4.1.5.tgz",
+      "integrity": "sha512-sWZlbEP2OsHNkXrMl5GYk/jKk70MBng6UU4YI/qGDYbgf6YbP4EvmqISbXCoJiRKs+1bSpFHVgQxvJ17F2li5g==",
       "dev": true,
       "requires": {
         "pseudomap": "^1.0.2",
@@ -1608,9 +1530,9 @@
       }
     },
     "mimic-fn": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/mimic-fn/-/mimic-fn-1.1.0.tgz",
-      "integrity": "sha1-5md4PZLonb00KBi1IwudYqZyrRg=",
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/mimic-fn/-/mimic-fn-1.2.0.tgz",
+      "integrity": "sha512-jf84uxzwiuiIVKiOLpfYk7N46TSy8ubTonmneY9vrpHNAnp0QBt2BxWV9dO3/j+BoVAb+a5G6YDPW3M5HOdMWQ==",
       "dev": true
     },
     "mimic-response": {
@@ -1824,17 +1746,17 @@
       }
     },
     "optionator": {
-      "version": "0.8.2",
-      "resolved": "https://registry.npmjs.org/optionator/-/optionator-0.8.2.tgz",
-      "integrity": "sha1-NkxeQJ0/TWMB1sC0wFu6UBgK62Q=",
+      "version": "0.8.3",
+      "resolved": "https://registry.npmjs.org/optionator/-/optionator-0.8.3.tgz",
+      "integrity": "sha512-+IW9pACdk3XWmmTXG8m3upGUJst5XRGzxMRjXzAuJ1XnIFNvfhjjIuYkDvysnPQ7qzqVzLt78BCruntqRhWQbA==",
       "dev": true,
       "requires": {
         "deep-is": "~0.1.3",
-        "fast-levenshtein": "~2.0.4",
+        "fast-levenshtein": "~2.0.6",
         "levn": "~0.3.0",
         "prelude-ls": "~1.1.2",
         "type-check": "~0.3.2",
-        "wordwrap": "~1.0.0"
+        "word-wrap": "~1.2.3"
       }
     },
     "os-homedir": {
@@ -2027,9 +1949,9 @@
       "integrity": "sha1-FQ4gt1ZZCtP5EJPyWk8q2L/zC6M="
     },
     "progress": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/progress/-/progress-2.0.0.tgz",
-      "integrity": "sha1-ihvjZr+Pwj2yvSPxDG/pILQ4nR8=",
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/progress/-/progress-2.0.3.tgz",
+      "integrity": "sha512-7PiHtLll5LdnKIMw100I+8xJXR5gW2QwWYkT6iJva0bXitZKa/XMrSbdmg3r2Xnaidz9Qumd0VPaMrZlF9V9sA==",
       "dev": true
     },
     "proxy-addr": {
@@ -2675,9 +2597,9 @@
       }
     },
     "which": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/which/-/which-1.3.0.tgz",
-      "integrity": "sha512-xcJpopdamTuY5duC/KnTTNBraPK54YwpenP4lzxU8H91GudWpFv38u0CKjclE1Wi2EH2EDz5LRcHcKbCIzqGyg==",
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
+      "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
       "dev": true,
       "requires": {
         "isexe": "^2.0.0"
@@ -2691,10 +2613,10 @@
         "string-width": "^1.0.2 || 2"
       }
     },
-    "wordwrap": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
-      "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=",
+    "word-wrap": {
+      "version": "1.2.3",
+      "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.3.tgz",
+      "integrity": "sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==",
       "dev": true
     },
     "wrappy": {
diff --git a/package.json b/package.json
index 749e560..567d686 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "stream-buffers": "^3.0.1"
   },
   "devDependencies": {
-    "eslint": "^4.14.0",
+    "eslint": "^4.18.2",
     "eslint-config-airbnb-base": "^12.1.0",
     "eslint-plugin-import": "^2.8.0"
   }
diff --git a/yarn.lock b/yarn.lock
index ed76bb1..4cca5f9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -348,13 +348,7 @@ debug@2.6.9, debug@^2.6.8:
   dependencies:
     ms "2.0.0"
 
-debug@^3.1.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
-  dependencies:
-    ms "2.0.0"
-
-debug@^3.2.6:
+debug@^3.1.0, debug@^3.2.6:
   version "3.2.6"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.2.6.tgz#e83d17de16d8a7efb7717edbe5fb10135eee629b"
   dependencies:
@@ -433,9 +427,9 @@ doctrine@1.5.0:
     esutils "^2.0.2"
     isarray "^1.0.0"
 
-doctrine@^2.0.2:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/doctrine/-/doctrine-2.0.2.tgz#68f96ce8efc56cc42651f1faadb4f175273b0075"
+doctrine@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/doctrine/-/doctrine-2.1.0.tgz#5cd01fc101621b42c4cd7f5d1a66243716d3f39d"
   dependencies:
     esutils "^2.0.2"
 
@@ -522,9 +516,9 @@ eslint-visitor-keys@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz#3f3180fb2e291017716acb4c9d6d5b5c34a6a81d"
 
-eslint@^4.14.0:
-  version "4.14.0"
-  resolved "https://registry.yarnpkg.com/eslint/-/eslint-4.14.0.tgz#96609768d1dd23304faba2d94b7fefe5a5447a82"
+eslint@^4.18.2:
+  version "4.18.2"
+  resolved "https://registry.yarnpkg.com/eslint/-/eslint-4.18.2.tgz#0f81267ad1012e7d2051e186a9004cc2267b8d45"
   dependencies:
     ajv "^5.3.0"
     babel-code-frame "^6.22.0"
@@ -532,7 +526,7 @@ eslint@^4.14.0:
     concat-stream "^1.6.0"
     cross-spawn "^5.1.0"
     debug "^3.1.0"
-    doctrine "^2.0.2"
+    doctrine "^2.1.0"
     eslint-scope "^3.7.1"
     eslint-visitor-keys "^1.0.0"
     espree "^3.5.2"
@@ -561,7 +555,7 @@ eslint@^4.14.0:
     semver "^5.3.0"
     strip-ansi "^4.0.0"
     strip-json-comments "~2.0.1"
-    table "^4.0.1"
+    table "4.0.2"
     text-table "~0.2.0"
 
 espree@^3.5.2:
@@ -786,18 +780,7 @@ gifencoder@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/gifencoder/-/gifencoder-1.1.0.tgz#50e7d98c4b0cf97edd0d885d7e1b997f88802de3"
 
-glob@^7.0.3, glob@^7.0.5, glob@^7.1.2:
-  version "7.1.2"
-  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.2.tgz#c19c9df9a028702d678612384a6552404c636d15"
-  dependencies:
-    fs.realpath "^1.0.0"
-    inflight "^1.0.4"
-    inherits "2"
-    minimatch "^3.0.4"
-    once "^1.3.0"
-    path-is-absolute "^1.0.0"
-
-glob@^7.1.3:
+glob@^7.0.3, glob@^7.0.5, glob@^7.1.2, glob@^7.1.3:
   version "7.1.6"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.6.tgz#141f33b81a7c2492e125594307480c46679278a6"
   dependencies:
@@ -1144,14 +1127,10 @@ lodash.cond@^4.3.0:
   version "4.5.2"
   resolved "https://registry.yarnpkg.com/lodash.cond/-/lodash.cond-4.5.2.tgz#f471a1da486be60f6ab955d17115523dd1d255d5"
 
-lodash@^4.17.11:
+lodash@^4.17.11, lodash@^4.17.4, lodash@^4.3.0:
   version "4.17.15"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
 
-lodash@^4.17.4, lodash@^4.3.0:
-  version "4.17.4"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae"
-
 long@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/long/-/long-4.0.0.tgz#9a7b71cfb7d361a194ea555241c92f7468d5bf28"
@@ -1916,7 +1895,7 @@ supports-color@^4.0.0:
   dependencies:
     has-flag "^2.0.0"
 
-table@^4.0.1:
+table@4.0.2:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/table/-/table-4.0.2.tgz#a33447375391e766ad34d3486e6e2aedc84d2e36"
   dependencies: