Update toolbar item sizes to work against the visual inconsistency where the items
where off by 1 pixel causing toolbar jumps between history and commit view.
When right-clicking on a ref label, if the ref has a default remote configured ,
a new greyed out menu entry with the remote's name is put above all other menu
entries and separated by a menu item separator.
Update inherent height of branch popup button to the max height to get rid of the 1px movement between view change.
Remove another unused localization.
André Berg