Fix npm run watch not working in OS X

electron-connect 0.4.4 causes `The application has become unresponsive.`

package.json

@@ -37,7 +37,7 @@
     "del": "^2.2.2",
     "devtron": "^1.3.0",
     "electron-builder": "5.2.1",
-    "electron-connect": "^0.4.4",
+    "electron-connect": "~0.3.9",
     "electron-packager": "^7.0.1",
     "electron-prebuilt": "1.2.7",
     "electron-winstaller": "^2.2.0",

src/package.json

@@ -11,7 +11,7 @@
   },
   "license": "Apache-2.0",
   "devDependencies": {
-    "electron-connect": "^0.4.4"
+    "electron-connect": "~0.3.9"
   },
   "dependencies": {
     "auto-launch": "^2.1.0",