More ajax work

Added spots taken to the workshops
Merge branch 'diversity' of github.com:Dacilndak/eventreg into diversity

Conflicts:
	app/assets/javascripts/register.js
Gender percentages work!
Merge branch 'diversity' of github.com:Dacilndak/eventreg into diversity
Merge branch 'diversity' of github.com:Dacilndak/eventreg
* Fixed?