using known working version for devdependencies

package.json

@@ -88,15 +88,15 @@
     "InstantMessaging"
   ],
   "devDependencies": {
-    "assert": "^1.4.1",
-    "devtron": "^1.1.0",
+    "assert": "1.4.1",
+    "devtron": "1.4.0",
     "electron-builder": "16.6.0",
     "electron": "1.4.15",
-    "electron-connect": "^0.4.6",
-    "gulp": "^3.9.1",
-    "gulp-mocha": "^3.0.1",
-    "spectron": "^3.3.0",
-    "xo": "*"
+    "electron-connect": "0.4.8",
+    "gulp": "3.9.1",
+    "gulp-mocha": "3.0.1",
+    "spectron": "3.6.1",
+    "xo": "0.18.1"
   },
   "xo": {
     "esnext": true,
@@ -117,8 +117,7 @@
       }
     ],
     "ignore": [
-      "tests/*.js",
-      "app/main/macos-swipe-navigation.js"
+      "tests/*.js"
     ],
     "envs": [
       "node",