Qt4projectManager: Refactor Qt4Target, split up in per target classes

Almost(*) all of the symbian and maemo specific code is now theoretically
moveable to a separate plugin. Thus making it possible to implement
new targets in a plugin.

(*) Noteable missing is the qtversion, which needs to be split up
per target too.

Also fixes
Task-Nr: QTCREATORBUG-2440

Reviewed-By: hunger
Reviewed-By: ck

src/plugins/qt4projectmanager/qt-s60/s60manager.cpp

@@ -42,6 +42,7 @@
 #include "s60devicerunconfiguration.h"
 #include "s60createpackagestep.h"
 #include "s60deploystep.h"
+#include "qt4symbiantargetfactory.h"
 
 #include <symbianutils/symbiandevicemanager.h>
 
@@ -130,6 +131,8 @@ S60Manager::S60Manager(QObject *parent)
                                             S60DeviceRunConfiguration>
                                             (QLatin1String(Debugger::Constants::DEBUGMODE),
                                              tr("Debug on Device"), parent));
+    addAutoReleasedObject(new Qt4SymbianTargetFactory);
+
     updateQtVersions();
     connect(m_devices, SIGNAL(qtVersionsChanged()),
             this, SLOT(updateQtVersions()));