Added only multiselection and checkboxes
Added new YTable mode management, possible configurations are:
- YTableSingleLineSelection   (old behavior multiselection = false)
- YTableMultiSelection        (old behavior multiselection = true)
- YTableCheckBoxOnFirstColumn (checkbox on first column)
- YTableCheckBoxOnLastColumn  (checkbox on last column)
Merge branch 'master' into multiselection_checkable
Fix release package with git tag