(cherry picked from commit 519f1d11947ff3109850e559fae868c4a55deb43)

in case Designer shows messages about missing resources or such.

Introduce some more private classes for the coreplugin,
use header include convention
<QtModule/QClass>, de-qobjectify VariableManager.

Also introduce a indirection, modes have now types, edit and debug have
the same type, and editors do have a prefered type of modes instead of a
prefered mode.

That fixes the bug that if the prefered qml editing mode was set to
design, then in switching between qml editors would
- in Edit Mode: stay in edit mode
- in Debug Mode: switch to debug mode

Fix README, some spelling errors, remove contractions,
exclamation marks, correct some plural forms, join split messages.
Add QCoreApplication::translate to non-Q_OBJECT-classes.
Fix some lupdate warnings about discarding meta-data (//:).

The wizards already provide a default suffix for file creation.
But since the user is still free to specify something else it's better to leave it to Creator to decide which one is the proper editor.
After all, this reflects how the file will be treated by Creator (including the next time it's opened).

Task-number: QTCREATORBUG-2006

On that occasion, rename Designer to show up as 'Form Editor'
instead of Xml Editor in 'Open With'.

Task-number: QTCREATORBUG-2246

 * Fix all warnings about non-explicit constructors except for those
   in 3rdparty code.

Reviewed-by: dt <qtc-committer@nokia.com>
Task-number: QTCREATORBUG-1911

to be used for the promoted widgets dialog.
See also 00e954ca817f89958a8a8777d93d3843252dc88c in Qt 4.8.

Reviewed-by: Jarek Kobus <jaroslaw.kobus@nokia.com>
Task-number: QTCREATORBUG-163

Task-number: QTCREATORBUG-1666
Acked-by: aportale <alessandro.portale@trolltech.com>

... for doxygen. Change logic for known empty keywords to be replaced
by an empty string.

Task-number: QTCREATORBUG-1854

Still need to change it to use RefactoringChanges, and to do better definition
generation.

Task-number: QTCREATORBUG-1798
Reviewed-by: Lasse Holmstedt <lasse.holmstedt@nokia.com>

Reviewed-by: Kai Köhne <kai.koehne@nokia.com>
Task-number: QTCREATORBUG-1762

an application that produces output. Add a placeholder for the
output pane.

Reviewed-by: con
Task-number: QTCREATORBUG-1750

A mostly mechanical change.

Reviewed-By: con

 - lessens open file handles
 - improves help plugin startup further

Task-number: QTCREATORBUG-337
Reviewed-by: ck

No strings translations were harmed in this commit. No kittens either.

Reviewed-by: Alessandro Portale

Wire QDesignerIntegration's help signal to help manager.

Task-number: QTCREATORBUG-1505
Reviewed-by: kh <qtc-committer@nokia.com>

While reloading a text document, the bookmarks got lost since their
associated QTextBlocks were deleted.

This patch makes sure that before reloading, the bookmarks are removed
non-persistently in the same way as when closing a document, and that
they are restored after the document was reloaded.

Currently, no effort is made to update the location of the bookmarks
based on the way the file changed.

Task-number: QTCREATORBUG-1281
Reviewed-by: dt

Reviewed-by: ossi

Reviewed-by: Leena Miettinen

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.