Detect msysgit installation with user-rights

Signed-off-by: Sven Strickroth <email@cs-ware.de>
git.exe of msysgit cmd folder does not work, so try to guess bin folder

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Fixed issue #1533: Could not parse git.exe version number

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Fixed typo introduced in last commit

Win32 build was broken.

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Fixed issue #1619: TortoiseGitMerge: Ribbon UI/toolbars can be toggled

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Fixed issue #1623: Search by email in Log window

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

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

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