fixing missing QT include in python_shellwidget

git-svn-id: https://dng.biozentrum.unibas.ch/svn/openstructure/branches/new_shell@2059 5a81b35b-ba03-0410-adc8-b2c5c5119f08

modules/gui/src/python_shell/python_shell_widget.hh

@@ -27,7 +27,7 @@
 
 #include <ost/gui/module_config.hh>
 #include <QPlainTextEdit>
-
+#include <QHash>
 #include "python_interpreter.hh"
 #include "shell_history.hh"
 #include  "python_shell_fw.hh"