forcing new node-sass for node 8 support

Author: weaverryan

package.json

@@ -59,7 +59,7 @@
     "less": "^2.7.2",
     "less-loader": "^4.0.2",
     "mocha": "^3.2.0",
-    "node-sass": "^4.5.0",
+    "node-sass": "^4.5.3",
     "nsp": "^2.6.3",
     "postcss-loader": "^1.3.3",
     "sass-loader": "^6.0.3",