ContextMenu: Moved "Revision Graph" further down

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Renamed == Bug Fix == to == Bug Fixes ==

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Can specify a specific path of submodule to update

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