#585 - Added HockeyApp SDK to project and conditionally configured based upon INTERNAL_BUILD parameter being present
#585 - Externalize HockeyApp credentials, add UDID authorization
Merge branch 'develop' into issue/585-hockeyapp-for-internal

Conflicts:
	WordPress/Classes/WordPressAppDelegate.m
Merge pull request #640 from wordpress-mobile/issue/585-hockeyapp-for-internal

Added HockeyApp SDK for internal builds