Added iOS artifacts to .gitignore.
Added more filetypes to gitignore, mostly build artifacts that should never be checked into version control.
Changed iOS target to iOS 5.0, removed arm64 slice, modified README.md, added an initial iOS frontend, added empty subclasses, added debugging entitlements plist to fix lldb, recreated the entire xcodeproj (it was somewhat required), removed iPad storyboard, removed code-signing requirements, modified AppDelegate to fix view controller status bar tint colors for iOS 7 and 6.