feat(espower-loader): use espower-source 0.9.0

Author: twada

Diff for: package.json

@@ -47,17 +47,17 @@
     "node": ">= 0.8.0"
   },
   "dependencies": {
-    "espower-source": "~0.8.0",
+    "espower-source": "~0.9.0",
     "minimatch": "~1.0.0"
   },
   "devDependencies": {
-    "empower": "~0.8.0",
+    "empower": "~0.9.0",
     "power-assert-formatter": "~0.8.0",
     "mocha": "~1.21.4",
     "grunt-contrib-jshint": "~0.10.0",
-    "grunt-mocha-test": "~0.10.2",
+    "grunt-mocha-test": "~0.11.0",
     "grunt": "~0.4.2",
     "expect.js": "~0.3.1",
-    "jit-grunt": "~0.7.0"
+    "jit-grunt": "~0.8.0"
   }
 }