Dropped unused variables

Based on a patch by XhmikosR <xhmikosr@users.sourceforge.net>.

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

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Replace var++ by ++var and use size_t where necessary

Inspired by a patch of XhmikosR <xhmikosr@users.sourceforge.net>.

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Some more minor fixes

Based on a patch by XhmikosR <xhmikosr@users.sourceforge.net>.

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Updated libgit2

(fixes issue #1627)

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Fixed issue #1624: Easier navigation in revision graph with mouse

Add move canvas by mouse

Signed-off-by: Frank Li <lznuaa@gmail.com>
StatGraph: rename some variable and clean up code

Signed-off-by: Frank Li <lznuaa@gmail.com>
Fix broken build after upgrading libgit2
Update Tortoise.pot

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
Launch 2 instances of TortoiseIDiff on resolving image file conflict

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