Demo updated, highlight / selection messages improvement

Now demo allows selection of cell type, to compare behaviour of
BMXSwipableCell and UITableViewCell. Fixed highlight / selection
messaging to delegate. Fixed selection behavior in edit mode with
multiple selection.
Fix for show deletion button in editing mode

Cell deletion in editing mode has issues related to default Delete
button.
Updated to 1.1
Minor fixes

Changed some wording (hide -> cover basement, refactored setters and
common code, fixed some bugs
Bug fixes
Deleted breakpoints