chore(tests): Fix current version of ns-dev-appium

Author: vakrilov

Diff for: e2e/renderer/package.json

@@ -39,7 +39,7 @@
     "mocha": "~3.5.0",
     "mocha-junit-reporter": "^1.13.0",
     "mocha-multi": "^0.11.0",
-    "nativescript-dev-appium": "next",
+    "nativescript-dev-appium": "2.1.0-2017-8-17",
     "nativescript-dev-typescript": "~0.4.0",
     "tslib": "^1.7.1",
     "typescript": "~2.2.1"

Diff for: e2e/router/package.json

@@ -42,7 +42,7 @@
     "mocha": "~3.5.0",
     "mocha-junit-reporter": "^1.13.0",
     "mocha-multi": "^0.11.0",
-    "nativescript-dev-appium": "next",
+    "nativescript-dev-appium": "2.1.0-2017-8-17",
     "nativescript-dev-typescript": "~0.4.0",
     "tslib": "^1.7.1",
     "typescript": "~2.2.1"