cleaned include files

- removed some dependencies between other header files
- removed many includes of <QtGui> and replaced it with only needed files

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@3312 b45a01b8-16f6-495d-af2f-9b41ad6348cc

retroshare-gui/src/gui/RemoteDirModel.cpp

@@ -19,21 +19,21 @@
  *  Boston, MA  02110-1301, USA.
  ****************************************************************/
 
-#include <set>
+#include <QFileInfo>
+#include <QDir>
+#include <QDesktopServices>
+#include <QUrl>
+#include <QMimeData>
 
 #include "RemoteDirModel.h"
 #include "rsiface/rsfiles.h"
 #include "rsiface/rstypes.h"
-
-#include <QtGui>
-#include <QIcon>
-#include <QPixmap>
-#include <iostream>
-#include <sstream>
-#include <math.h>
-#include <algorithm>
 #include "util/misc.h"
 
+#include <set>
+#include <sstream>
+#include <algorithm>
+
 /*****
  * #define RDM_DEBUG
  ****/