Removed shebangs from python scripts.

moose-gui/PlotWidgetContainer.py

-#!/usr/bin/env python
+
 # -*- coding: utf-8 -*-
 from __future__ import print_function
 

moose-gui/RunWidget.py

-#!/usr/bin/env python
+
 # -*- coding: utf-8 -*-
 from __future__ import print_function
 

moose-gui/SettingsDialog.py

-#!/usr/bin/env python
+
 # -*- coding: utf-8 -*-
 from __future__ import print_function
 

moose-gui/plugins/NeuroKit.py

-#!/usr/bin/env python
+
 # -*- coding: utf-8 -*-
 
 """

moose-gui/plugins/NeuroKitEditor.py

-#!/usr/bin/env python
+
 # -*- coding: utf-8 -*-
 
 """

moose-gui/sidebar.py

-#!/usr/bin/env python
+
 # -*- coding: utf-8 -*-
 from __future__ import print_function