Basic integration of diff editor inside git plugin

Change-Id: I7675fc1d994020f94f42f6bd7b4f75aa29e6edf6
Reviewed-by: David Schulz <david.schulz@digia.com>
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
Debugger: Make readRawMemory uniformly accessible from Dumper object

Change-Id: I404753691943005984fe36978a14f7dadfc8ac26
Reviewed-by: hjk <hjk121@nokiamail.com>
Diffeditor: Fix strings

Change-Id: Id5f11af0c6b7c6f3a4c3c65d108b8c0dd1ba2663
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>