keybindings.
Add enum values for keybinding groups.
Make Notebook tabs keybindings group.
Move Go to tags items into Tags keybindings group.
Move navigation items into a new Other keybindings group.


git-svn-id: https://geany.svn.sourceforge.net/svnroot/geany/trunk@2027 ea778897-0a13-0410-b9d1-a72fbfd435f5