Merge pull request react-bootstrap#905 from AlexKVal/newRules

Proposal. New eslint rules about 'super'.

Author: taion

.eslintrc

@@ -12,10 +12,12 @@
     "babel"
   ],
   "rules": {
+    "constructor-super": 2,
     "comma-spacing": 2,
     "comma-style": [2, "last"],
     "one-var": [2, { "initialized": "never" }],
     "key-spacing": 0,
+    "no-this-before-super": 2,
     "no-underscore-dangle": 0,
     "no-unused-vars": [2, { "vars": "all", "args": "none" }],
     "no-var": 2,