chore(espower-coffee): add convert-source-map and update espower-source to support sourcemaps

Author: twada

package.json

@@ -20,12 +20,14 @@
     "test_loader"
   ],
   "dependencies": {
-    "espower-source": "^0.8.0",
-    "minimatch": "^1.0.0"
+    "convert-source-map": "^0.4.1",
+    "espower-source": "^0.9.0",
+    "minimatch": "^1.0.0",
+    "xtend": "^4.0.0"
   },
   "devDependencies": {
     "coffee-script": "^1.7.1",
-    "empower": "^0.8.0",
+    "empower": "^0.9.0",
     "expect.js": "^0.3.1",
     "mocha": "^1.21.4",
     "power-assert-formatter": "^0.8.0"