chore(package): update source-map-support to version 0.4.7 (#476)

Author: greenkeeperio-bot

package.json

@@ -68,7 +68,7 @@
     "react-dom": "15.4.1",
     "react-hot-loader": "3.0.0-beta.6",
     "send": "0.14.1",
-    "source-map-support": "0.4.6",
+    "source-map-support": "0.4.7",
     "strip-ansi": "3.0.1",
     "styled-jsx": "0.2.2",
     "url": "0.11.0",