update track files
[MINOR FIX] prevented the submission of empty forms and cleaned up code
[UPDATE] THe number of pairs/individuals is parameterised by variables in admin's 'Competition' form.
[UPDATE] Some update/debugging work with Will. (Forcing invigilator numbers)
Merge branch 'williamo14week2' of https://github.com/wyllos/uct-maths-competition into 01-2014-AdminParameters
[MERGE&FIX] Pulled William's changes, tested a few cases.
[UPDATE] Removed 'Rank Students' for now.
Merge pull request #21 from frank-retief/01-2014-AdminParameters

01 2014 admin parameters