Added few new functions to IVersionControl, VCSManager and GeneratedFile to support the funcationality needed by the trac plugin.
All the version control plugins updated to have implementations according to the interface changes.

Merge-request: 2178
Reviewed-by: Tobias Hunger <tobias.hunger@nokia.com>

Merge-request: 2178
Reviewed-by: Tobias Hunger <tobias.hunger@nokia.com>

..for timeout handling to take effect. Also,
log window will update continuously.

Task-number: QTCREATORBUG-777

Reviewed-By: con
Reviewed-By: Friedemann Kleint

We now support renaming files. The version control system tries first to
rename, if that doesn't support or can't rename the file we do a normal
rename. (Note: git, hg, perforce > 2009.02 support renaming, cvs not.
(perforce untested)). We correctly notify all editors of the renamed
file and tell the project manager to rename the file in the project.

Note: Only the qt4projectmanager knows how to rename files.

Note: renaming folders, moving files to different folders, renaming
.pro/.pri files is not supported. Those things can be later added after
this has proven to work correctly in the simple case.

Also we don't do any actions based on the renaming like renaming
classes, changing include guards or #include lines.

Introduce static utilities to Utils::SynchronousProcess
for synchronous processes that mimicks the handling
of Utils::SynchronousProcess (apply timeout after no
more data are available on stdout/stderr as opposed
to waitForFinished()).

Task-number: QTCREATORBUG-777

Add repository creation operation to IVersionControl, implement for hg
and git, add convenience slot with prompts to VCSBasePlugin.
Add respective menu options and make menus are visible in case no VCS is
active.
Change project wizards extension page to list VCS that are capable of
repository creation in a QComboBox in case the directory is not managed
by another VCS (in which case it lists that one for operation 'add').
On that occasion, polish the Project selection to use a QComboBox as
well and add some smartness to find the most suitable project to add via
path matching.

by passing -A (plus security check).

Task-number:   QTCREATORBUG-503

Task-number: QTCREATORBUG-503

Make use of VCS base class.

Add a QVariant cookie to HgTask to be emitted on successful
execution, wired to IVersionControl.

Start the jobrunner on demand, save options only if changed,
give it the structure used elsewhere in the VCS plugins. Remove
last traces of the cmd /c hack.

Do not use "cmd /c hg" on Windows as this will fail randomly
depending on arguments with blanks, such as "-U 8". Output log
messages about synchronous commands, format author correctly,
label menus correctly.

Polish: Canconical slots, const-correctness, some QLatin1Strings/tr,