Added border-image to sorting properties

Author: Eugene Fedorenko

index.js

@@ -193,6 +193,12 @@ module.exports = {
         'border-style',
         'border-color',
         'border-radius',
+        'border-image',
+        'border-image-source',
+        'border-image-slice',
+        'border-image-width',
+        'border-image-outset',
+        'border-image-repeat',
         'border-top',
         'border-top-width',
         'border-top-style',