Tree view entities in a multiple selection all open in a new tab
- newTabRequested() now opens a tab with a list, implemented an overloaded function for other signals that don't need a list.
- multiSelection is now passed from treeview to tabwidget, consider wrapping these arguments in a struct?
Signed-off-by: Mortimer Pavlitski mortimer.pavlitski@codethink.co.uk