Factored filter plugin out (missing filter actions!)
Added filter dock file
Fixed channel filters
Bugfix: Filters in copied filter group were referenced, not copied
Filter system refactored
Moved more general methods from MainWindowNeo to MainWindow
Factored out IPython support
Docs, PEP 8
Docs, PEP 8
No more Neo references in MainWindow
Refactoring for name consistency
Factored out Neo navigation dock
Merge branch 'Cleanup' into develop

Conflicts:
	spykeviewer/ui/main_window_neo.py
	spykeviewer/ui/plugin_editor_dock.py