Adds linting command to npm

Author: chollier

package.json

@@ -14,7 +14,8 @@
     "build-min": "NODE_ENV=production COMPRESS=1 webpack --output-file react-bootstrap-datetimepicker.min.js",
     "examples": "webpack-dev-server --config ./examples/webpack.config.js",
     "test-watch": "./node_modules/.bin/grunt watch 2>&1 >/dev/null & karma start karma.dev.js",
-    "test": "./node_modules/.bin/grunt build && karma start karma.ci.js"
+    "test": "./node_modules/.bin/grunt build && karma start karma.ci.js",
+    "lint": "eslint ."
   },
   "keywords": [
     "react",
@@ -36,6 +37,7 @@
     "babel-runtime": "^5.6.18",
     "envify": "~3.2.0",
     "eslint": "^0.24.1",
+    "eslint-plugin-react": "^2.7.0",
     "grunt": "~0.4.2",
     "grunt-amd-wrap": "^1.0.1",
     "grunt-browserify": "~1.3.0",