Fixed issue #1662: skip-worktree should not be exposed via context menus or anything without confirmation

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Updated Tortoise.pot

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Fix assertion when running Commit Dialog in debug mode

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