search should be get (no state change)
stripped back and updated index view
re-enabled certificate index, display published certificates
refactored response_set curator and title
Merge branch 'master' into certificates-index
require the dataset_curator for a Survey to be valid
added migrations so that all the current certificates will have a curator set
updated style of certificate on index page
remove any certificates that were left behind before the dependant: destroy days - resolves #420 #417
schema bump
corrected migration to deal with orphan certificates
pretty hacky update to the styles of the certificate page
use the pre-generated attained level rather than re-computing it for each view
Merge branch 'master' into certificates-index

Conflicts:
	app/controllers/certificates_controller.rb
	config/routes.rb
be less worse at spelling stuff
corrected link to certificates on new url structure
updated test to suit new url scheme
Merge pull request #443 from theodi/certificates-index

Certificates index