Implements new XML-based format for examples, demos & tutorials

Done-with: Primrose Mbanefo <ext-primrose.mbanefo@nokia.com>
Change-Id: I42c0afdb419cffe5637cd4f298e828d09e0fb15a
Reviewed-on: http://codereview.qt.nokia.com/840


Reviewed-by: Eike Ziller <eike.ziller@nokia.com>

Also adjust qmldumptool to remove the dependency on qt4project/qmlproject, by
passing in the qtversion instead of figuring it out in qmldumptool.

Change-Id: Ie6ac582d36bfef290313c0716b33b62fcf42630c
Reviewed-on: http://codereview.qt.nokia.com/70


Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Daniel Teske <daniel.teske@nokia.com>

Change-Id: I8b73d583be1ee7183f4074bce49d5390e38631a2

rename BastTextEditor->BaseTextEditorWidget, BaseTextEditorEditable->BaseTextEditor
rename BaseTextEditor{,Widget} subclasses
rename editableInterface->editorInterface
rename createEditableInterface->createEditor
minor cleanups after renamings

Reviewed-by: hjk

Re-introduce FormWindowEditor as IEditor used for
Designer. Use SharedTools::WidgetHost directly
for embedding into FormEditorStack, doing the
geometry-changed handling in there as well.

Move resource code to new ResourceHandler class and
instantiate it on the form window.

Re-introduce FormEditorFile that delegates dirty handling to the form
window. Change DesignerXmlEditable to be an IEditor that embeds
TextEditable so that the PlainTextEditor can work with it, but delegates
relevant functionality to FormEditorFile.
Centralize all form window creation code that was scattered around
in FormEditorW::createEditor() and have that return a struct Editor
data, which is passed to FormEditorStack.
Update the text editor only on open/createNew/switch away from design
mode.

- Remove shared subwindow reparenting from EditorWidget, make EditorWidget
  inherit FancyMainWindow. and use just once instance of it instead of
  per-editor ones.
- Embedded FormEditorStack into EditorWidget as a centralwidget.
- Changed FormWindowEditor's base class from IEditor to SharedTools::FormWindowHost
  (Widget) to be embedded into FormEditorStack (no need to be an IEditor),
  Remove Designer::Internal::FormWindowHost which had little functionality.
- Add Design Mode widget to FormEditorW which has FakeToolBar and EditorWidget
  (single instance) in a vertical layout.
- Removed ProxyAction class handling dock view toggle actions of several EditorWidgets
  (no longer necessary since there is just once instance). Moved "View menu" to bottom.
- Started to make FakeToolBar work as a single instance listening on changing
  xml editors
- Include-file/slot connection clean-up.

...to use new editor.
Reviewed-by: Lasse Holmstedt <lasse.holmstedt@nokia.com>

Moved Qt Designer to open from Design Mode. Also, Design mode is now global,
and created in coreplugin. Other plugins can register themselves to it.