Fix student counts
Add function to grab category-specific data
Add form validation
DRY the form
Work on new form -> param flow
Improve logic flow
Retain form data
Add category reporting
Coalesce per_c_active and per_c_guest
Add an application cache with 4 hour TTL
Use the cache
Improve category view
Add CSV output format
Distinguish reports
Dont HR in cat view
Dont echo back into CSV
Improve display
Merge pull request #4 from unikent/feature/2014110300

November Release
Dont show HR on blank index
Merge pull request #5 from unikent/master

STABLE Pull