Bump version to 0.4.0

Author: SamyPesse

package.json

@@ -2,7 +2,7 @@
     "name": "codebox",
     "description": "Open Cloud IDE",
     "homepage": "https://www.codebox.io",
-    "version": "0.3.2",
+    "version": "0.4.0",
     "author": "[email protected]",
     "dependencies": {
         "q": "0.9.6",