Flake8
Flake8
Override the custom sitemenu to add statistics action
Remove superfluous dependencies. Add plone.api
Major refactoring of statistics views

- Move statistics.py to content directory
- Move statistics.pt to content/templates
- Split @@show-statistics into 3 different views
- Use a z3c.form schema for the form elements
Add getToolsInSector (fixes vocab for ISector objs)