Added GPL headers

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

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Moved MAPI settings to settings dialog

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

Signed-off-by: Sven Strickroth <email@cs-ware.de>
TortoiseGitMerge: Slow check at the end is only needed if the fast part didn't find any non-ANSI chars

Based on TortoiseSVN revision 24553

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