Breaking: drop support eslint@<4.7

ESLint v4.7.0 changed the behavior about `/* eslint-disable */`-like comments. This plugin should follow the change, but rules cannot know the version of the current running ESLint. So I decided dropping support for `eslint@<4.7`.

Author: mysticatea

.travis.yml

@@ -8,9 +8,7 @@ node_js:
 
 env:
   - ESLINT_VERSION=4
-  - ESLINT_VERSION=4.3
-  - ESLINT_VERSION=3
-  - ESLINT_VERSION=3.1
+  - ESLINT_VERSION=4.7
 
 before_script:
   - npm i --no-save eslint@$ESLINT_VERSION; true

package.json

@@ -10,7 +10,7 @@
     "lib"
   ],
   "peerDependencies": {
-    "eslint": ">=3.1.0"
+    "eslint": ">=4.7.0"
   },
   "dependencies": {
     "escape-string-regexp": "^1.0.5"