GitStatusList: Canceling ignore dialog disabled redrawing

Right click on a file in commit dlg and select ignore, but then cancel the dialog -> redrawing was not enabled again.

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Dropped code for SVN specific hooks

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