Some ui tweaks in level editing tab, cleaned up ctnr/views.py
Some ui tweaks in level editing tab, cleaned up ctnr/views.py

OSU-Net/cyder,zeeman/cyder,zeeman/cyder,murrown/cyder,OSU-Net/cyder,murrown/cyder,akeym/cyder,drkitty/cyder,OSU-Net/cyder,akeym/cyder,drkitty/cyder,murrown/cyder,drkitty/cyder,murrown/cyder,akeym/cyder,zeeman/cyder,OSU-Net/cyder,zeeman/cyder,drkitty/cyder,akeym/cyder