- adding IsFirstHandler to allow controls to skip Actions which has been invoked already (i.e. due to navigation)
- adding Hidden method to ButtonGrid to fix re-rendering Buttons after opening a Modal form and comming back
- improving and fixing the Cleanup method for ButtonGrid to prevent "Keyboard jumping" for ReplyKeyboard on mobile devices.
- renaming some old *Result objects to *EventArgs for more clear definitions
- added eKeyboardType to switch between Inline and KeykboardButtons
- addes some small functions to ButtonForm
- added new control "ButtonGrid" which manages Button handling with Event Handler for each Button and can switch between InlineMode and KeyboardMode during runtime
- added also Examples to it
