[Aleks] Switch website authentication to okta.
[Aleks] Rename Cas to OKTA, because we don't use Cas anymore.
[Aleks] Change email content because Casey and Robin are not with ThoughtWorks anymore.
Use fingerprint instead of cert
Merge pull request #5 from ReviewSite/okta

Okta
Aleks - Change okta that we are using for log out.
add email link to reviews table to allow admin to email JCs review links
refactor controllers to use before_filter
implement autocomplete search for JC names when creating a review
use datepicker instead of dd/mm/yyyy dropdowns
remove unused css
change Coach field from dropdown to searchable with autocomplete
fixing lockfile