Update version of pixrem

Author: alexlande

package.json

@@ -28,7 +28,7 @@
   "dependencies": {
     "autoprefixer": "^6.0.2",
     "caniuse-api": "^1.3.2",
-    "pixrem": "^2.0.0",
+    "pixrem": "^3.0.0",
     "pleeease-filters": "^2.0.0",
     "postcss": "^5.0.4",
     "postcss-calc": "^5.0.0",