Merge pull request #28 from gucong3000/greenkeeper/known-css-properties-0.2.0

Update known-css-properties to the latest version 🚀

Author: gucong3000

package.json

@@ -5,7 +5,7 @@
   },
   "dependencies": {
     "autoprefixer": "^7.1.0",
-    "known-css-properties": "^0.1.0",
+    "known-css-properties": "^0.2.0",
     "normalize-range": "^0.1.2",
     "postcss": "^6.0.1",
     "postcss-selector-parser": "^2.2.3",