chore(pkg): share source-map version with babel

Author: douglasduteil

package.json

@@ -37,15 +37,15 @@
   },
   "license": "WTFPL",
   "dependencies": {
-    "babel-core": "^5.8.23",
+    "babel-core": "^5.8.25",
     "escodegen": "^1.6.1",
     "esprima": "^2.1.0",
     "istanbul": "^0.3.13",
     "lodash.partial": "^3.1.0",
     "mkdirp": "^0.5.0",
     "nomnomnomnom": "^2.0.0",
     "object-assign": "^4.0.1",
-    "source-map": "^0.4.2",
+    "source-map": "^0.5.0",
     "which": "^1.0.9"
   },
   "devDependencies": {