Upgrade linting and CSS packages

package.json

@@ -20,7 +20,7 @@
     "@fortawesome/free-solid-svg-icons": "5.7.2",
     "@fortawesome/react-fontawesome": "0.1.4",
     "@sentry/browser": "4.0.3",
-    "autoprefixer": "9.1.5",
+    "autoprefixer": "9.4.9",
     "babel-core": "6.26.3",
     "babel-eslint": "9.0.0",
     "babel-loader": "7.1.2",
@@ -36,9 +36,9 @@
     "del": "3.0.0",
     "element-class": "0.2.2",
     "esformatter": "0.10.0",
-    "eslint": "5.6.0",
+    "eslint": "5.14.1",
     "eslint-plugin-filenames": "1.3.2",
-    "eslint-plugin-react": "7.11.1",
+    "eslint-plugin-react": "7.12.4",
     "esprint": "0.4.0",
     "extract-text-webpack-plugin": "3.0.2",
     "file-loader": "1.1.6",
@@ -68,9 +68,9 @@
     "normalize.css": "8.0.0",
     "postcss-color-function": "4.0.1",
     "postcss-loader": "3.0.0",
-    "postcss-mixins": "6.2.0",
-    "postcss-nested": "4.1.0",
-    "postcss-simple-vars": "5.0.1",
+    "postcss-mixins": "6.2.1",
+    "postcss-nested": "4.1.2",
+    "postcss-simple-vars": "5.0.2",
     "prop-types": "15.6.2",
     "qs": "6.5.2",
     "react": "16.5.2",
@@ -104,8 +104,8 @@
     "signalr": "2.4.0",
     "streamqueue": "1.1.2",
     "style-loader": "0.19.1",
-    "stylelint": "9.5.0",
-    "stylelint-order": "1.0.0",
+    "stylelint": "9.10.1",
+    "stylelint-order": "2.0.0",
     "tar.gz": "1.0.7",
     "uglifyjs-webpack-plugin": "1.2.5",
     "url-loader": "0.6.2",