* Restrucure touch layout editor to make space for additional gesture
types:
* Move control bar to right hand side
* Move key cap edits to control bar.
* Adds flick and multitap gestures:
* Adds buttons to add longpress keys, flicks or multitaps.
* Adds Unicode value boxes which mirror the key cap text box.
* Updates key width values in real time when resizing
* Maintain selected key as far as possible across layer switch, platform
switch and presentation view switch.
* Starts to split 'special' key cap icons from normal key caps.
