Add stylelint

@@ -100,6 +100,7 @@
     "copy-webpack-plugin": "^3.0.1",
     "cross-env": "^3.2.4",
     "css-loader": "^0.25.0",
+    "directory-tree": "^2.1.0",
     "eslint": "^3.4.0",
     "eslint-config-angular": "^0.5.0",
     "eslint-loader": "^1.5.0",
@@ -112,6 +113,7 @@
     "html-minifier-loader": "^1.3.4",
     "html-webpack-plugin": "^2.30.1",
     "img-loader": "^1.3.1",
+    "jsonminify": "^0.4.1",
     "less": "^2.7.1",
     "less-loader": "^2.2.3",
     "ng-annotate-loader": "^0.1.1",
@@ -122,14 +124,18 @@
     "react-hot-loader": "^3.0.0-beta.6",
     "sass-loader": "^4.0.2",
     "style-loader": "^0.13.1",
+    "stylelint": "^9.5.0",
+    "stylelint-config-recommended-scss": "^3.2.0",
+    "stylelint-config-standard": "^18.2.0",
+    "stylelint-order": "^1.0.0",
+    "stylelint-scss": "^3.3.0",
+    "stylelint-webpack-plugin": "^0.10.5",
     "url-loader": "^0.5.7",
     "webpack": "^1.13.2",
     "webpack-dev-middleware": "^1.6.1",
     "webpack-dev-server": "^1.15.1",
     "webpack-hot-middleware": "^2.12.2",
-    "webpack-material-design-icons": "^0.1.0",
-    "directory-tree": "^2.1.0",
-    "jsonminify": "^0.4.1"
+    "webpack-material-design-icons": "^0.1.0"
   },
   "engine": "node >= 5.9.0",
   "nyc": {

@@ -18,6 +18,8 @@
 const HtmlWebpackPlugin = require('html-webpack-plugin');
 const ExtractTextPlugin = require('extract-text-webpack-plugin');
 const CopyWebpackPlugin = require('copy-webpack-plugin');
+const StyleLintPlugin = require('stylelint-webpack-plugin')
+
 const webpack = require('webpack');
 const path = require('path');
 const dirTree = require('directory-tree');
@@ -76,6 +78,7 @@ module.exports = {
             title: 'ThingsBoard',
             inject: 'body',
         }),
+        new StyleLintPlugin(),
         new webpack.optimize.OccurrenceOrderPlugin(),
         new webpack.NoErrorsPlugin(),
         new ExtractTextPlugin('style.[contentHash].css', {