Drop logically dead code

Signed-off-by: Sven Strickroth <email@cs-ware.de>
RefBrowser: Display tracked branch

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Show short name of tracked branch to save space

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
Merge branch 'display-tracked-branch'
Statically link CustomActions

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Rebase Dialog: Prompt user that there are auto skipped commits

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>