Updated ligit2

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Fixed issue #1814: Squash rebase fills message too much

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Implement printing from TortoiseUDiff

Based on TortoiseSVN revisions #24387 and #24390.

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

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