Added swipe test for 'swipeDown' strategy
Fix for installing IPA packages on iOS devices.

If this.args.app is an IPA, this.args.ipa should get the same value,
so that installIpa() is called from installToRealDevice().
Merge pull request #3771 from paymand/install_ipa_on_device

Fix for installing IPA packages on iOS devices.
fixed chromedriver support for Chromium/ChromeShell
Merge pull request #3779 from 0x1mason/chromeshell_fix

fixed chromedriver support for Chromium/ChromeShell
Merge pull request #3735 from 0x1mason/swipe_test

Swipe test