Merge pull request #89 from IanMayo/feature/alex/new-splash-screen-img

Add new splash screen images to the app
Add progress spinner to the mobile splash screen
Add touchstart/click listener to close splash screen
Change SPLASH_ON_MAIN value to true, and remove IS_MOBILE constant from resolver
Change mock splash screen logic in debug controller
Add label "Click anywhere to continue" to the splash screen
Add media queries for the popular devices and different splash screen images (included retinal)
Recompile Android/iOS apps