VCS: Remove dead code

Change-Id: I9505cdd4c59f8f66e686945a3340990b195fcb55
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
DiffEditor: Remove dead code

Change-Id: I57c61b7c5adb80ab6ffecd699cd78e1351509b07
Reviewed-by: Jarek Kobus <jaroslaw.kobus@digia.com>
Qnx: Remove dead code

Change-Id: I16aa29f1f45bd7094dbbfb00de4965d95a386f6f
Reviewed-by: Mehdi Fekari <mfekari@blackberry.com>
Reviewed-by: David Kaspar <dkaspar@blackberry.com>
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
AnsiEscapeCodeHandler: Added auto tests.

First simple tests to check:
* pass-trough text without ANSI escape sequences
* text-color change in line
* text-bold change in line

Change-Id: I054a3fb218e95dfd5e160f1ae71dc0638bc5f239
Reviewed-by: Petar Perisin <petar.perisin@gmail.com>
Reviewed-by: Orgad Shaneh <orgads@gmail.com>