Git: Make tree layout consistent on add branch

Change-Id: I3b49d76ef0e3da9ab60d6859a8b8e18092794bbb
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
Git: Prevent tracking tags

Change-Id: Iea935aa226b70de936653b7637b4b9bb5e9c64cf
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>