chore(package): update dependencies (#437)

https://greenkeeper.io/

package.json

@@ -55,10 +55,10 @@
     "express": "^4.13.3",
     "express-session": "^1.11.3",
     "fatfs": "^0.10.3",
-    "fs-extra": "^0.30.0",
+    "fs-extra": "^1.0.0",
     "fs-promise": "^0.5.0",
     "get-stream": "^2.1.0",
-    "hashy": "~0.4.2",
+    "hashy": "~0.5.1",
     "helmet": "^3.0.0",
     "highland": "^2.5.1",
     "http-proxy": "^1.13.2",
@@ -123,7 +123,7 @@
     "gulp-plumber": "^1.0.0",
     "gulp-sourcemaps": "^2.1.1",
     "gulp-watch": "^4.2.2",
-    "index-modules": "0.0.0",
+    "index-modules": "0.1.0",
     "leche": "^2.1.1",
     "mocha": "^3.0.2",
     "must": "^0.13.1",