#656

#651

As the registration of hidden and visible pages can take place
asynchronously, the array of hidden and visible pages must be sorted

The delay is used to check whether a selection is still available after
PointerUp, as this is often deleted in Firefox under Windows mobile

#628

#623

#582

#613

#552

#448

#605

#605

#606

#606

#605

#608

- Prevent input of 'Dead' keys

This reverts commit 7a697cd9.

- Toggling of keyboard and keypad are now async
- Keyboard and keypad animations are disabled for a short period of time

- Input field manipulation moves from service methods to new
  TextInputGroupDirective

- Remove unused imports

Windows convertibles were not recognized as mobile devices by this check