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/shared/proparser/proitems.h

@@ -33,6 +33,7 @@
 #ifndef PROITEMS_H
 #define PROITEMS_H
 
+#include "proparser_global.h"
 #include <QtCore/QString>
 #include <QtCore/QVector>
 
@@ -190,7 +191,7 @@ enum ProToken {
     TokNewStr = 0x200   // Next stringlist element
 };
 
-class ProFile
+class PROPARSER_EXPORT ProFile
 {
 public:
     explicit ProFile(const QString &fileName);