Migrated SocialFrameworkDemo to unified api
Migrated SimpleTextInput to unified api

Casting nfloat/float, nint/int, include NSTimer as parameter for Action
in NSTimer.CreateRepeatingScheduledTimer(), change PointF[] to CGPoint[]
Migrated SimpleDrillDown to unified
Migrated SimpleCollectionView to unified api

Some float/nfloat casting
migrated SimplebackgroundTransfer to unified api