chore(package): update eslint-plugin-import to version 2.18.2

Closes #52

Author: greenkeeper[bot]

package.json

@@ -46,7 +46,7 @@
     "coveralls": "3.0.1",
     "eslint": "5.0.0",
     "eslint-config-standard": "12.0.0",
-    "eslint-plugin-import": "2.12.0",
+    "eslint-plugin-import": "2.18.2",
     "eslint-plugin-mocha": "5.0.0",
     "eslint-plugin-node": "7.0.0",
     "eslint-plugin-promise": "4.0.1",