Bump vscode engine version

Author: felicio

package-lock.json

@@ -11,7 +11,8 @@
     "url": "https://github.com/xabikos/vscode-javascript"
   },
   "engines": {
-    "vscode": "0.10.x"
+    "vscode": "^1.3.0",
+    "node": ">=4.0.0"
   },
   "main": "./src/extension",
   "activationEvents": [