Move a lot of qmake independent classes to a new plugin qtsupport

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>

src/plugins/qt4projectmanager/wizards/html5appwizard.cpp

@@ -58,7 +58,7 @@ private:
 };
 
 Html5AppWizardDialog::Html5AppWizardDialog(QWidget *parent)
-    : AbstractMobileAppWizardDialog(parent, QtVersionNumber())
+    : AbstractMobileAppWizardDialog(parent, QtSupport::QtVersionNumber())
     , m_htmlOptionsPage(0)
 {
     setWindowTitle(tr("New HTML5 Application"));