Moved general gstreamer helper classes into separate library.

Cleaned up configuration of gstreamer with a separate config
test.

Change-Id: I1ec9ee466233687fbcfdc544a12d9fce578e4379
Reviewed-on: http://codereview.qt-project.org/6459
Sanity-Review: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Michael Goddard <michael.goddard@nokia.com>

src/plugins/gstreamer/camerabin/camerabinimagecapture.cpp

@@ -43,9 +43,9 @@
 #include "camerabincapturedestination.h"
 #include "camerabincapturebufferformat.h"
 #include "camerabinsession.h"
-#include "qgstvideobuffer.h"
-#include "qvideosurfacegstsink.h"
-#include "qgstutils.h"
+#include <private/qgstvideobuffer_p.h>
+#include <private/qvideosurfacegstsink_p.h>
+#include <private/qgstutils_p.h>
 #include <QtCore/qdebug.h>
 #include <QtCore/qbuffer.h>
 #include <QtGui/qimagereader.h>

src/plugins/gstreamer/camerabin/camerabinservice.cpp

@@ -46,7 +46,6 @@
 #include "camerabinaudioencoder.h"
 #include "camerabinvideoencoder.h"
 #include "camerabinimageencoder.h"
-#include "qgstreamerbushelper.h"
 #include "camerabincontrol.h"
 #include "camerabinlocks.h"
 #include "camerabinmetadata.h"
@@ -57,6 +56,7 @@
 #include "camerabinimageprocessing.h"
 #include "camerabincapturebufferformat.h"
 #include "camerabincapturedestination.h"
+#include <private/qgstreamerbushelper_p.h>
 
 #include "qgstreameraudioinputendpointselector.h"
 #include "qgstreamervideoinputdevicecontrol.h"

src/plugins/gstreamer/camerabin/camerabinsession.cpp

@@ -51,7 +51,7 @@
 #include "camerabinlocks.h"
 #include "camerabincapturedestination.h"
 #include "camerabincapturebufferformat.h"
-#include "qgstreamerbushelper.h"
+#include <private/qgstreamerbushelper_p.h>
 #include "qgstreamervideorendererinterface.h"
 #include <qmediarecorder.h>
 #include <gst/interfaces/photography.h>