TaskModel::firstError() and TaskWindow::gotoFirstError()

Check for x32 as well; pop up a message box on failure.

Added IExternalEditor which knows a kind and a mimetype.
Make EditorManager and ProjectExplorer "Open With" query
the interface and add the respective kinds.
Add "openExternalEditor" to EditorManager.
Add External editors for Designer and Linguist,
making use of Mac 'open' or Designer's Tcp socket mechanism
to ensure files are opened in the same instance (per Qt version).

Task-number: 249392
Reviewed-by: con <qtc-committer@nokia.com>

Sergey Belyashov:
      (Almost) full Russian translation

Repository: git://gitorious.org/~bsa/qt-creator/bsas-clone.git
Branch: master (3744854e)

Request-url: http://qt.gitorious.org/qt-creator/qt-creator/merge_requests/443


Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>

Merge commit '3744854e' into HEAD

Merge commit '3744854e' into HEAD

Still too unstable after all.

This reverts commit 6f3c9f70.

We didn't support having different build directories.

Task-Nr: 251632

This reverts commit 84ba24ac.

It might work now cause of the fix done in commit
f3767148.

Mainly removed the "Settings" part, since we don't use that in our
settings pages generally.

Also merged the build and run group boxes, since they both have only a
single checkbox currently. Easy enough to add more structure when
necessary.

Also, warn if no MSVC version could be detected even though the Qt
version was build with MSVC. This should make the tracing of problem
a bit easier. Before, we have hidden the GUI elements if only one
compiler version could be found. This looks inconsistent and causes
confusion.

At this point, compiling projects and debugger helpers works.
The speciality with this is that Qt does not provide distinct
mkspecs, because MSVC draws the line between 32 and 64 bit
solely by the environment.

Conflicts:
	src/plugins/texteditor/texteditorconstants.h