Added field to allow certificates to be audited
Added route to mark a certificate as audited
Added views to display certificate verification
Added admin button to mark/unmark certificate as audited
Changed copy case to be consistent with the rest of the site
Added tests for auditing a certificate
Cleaned up trailing whitespace
Merge branch 'refs/heads/master' into feature-certificate-auditing

Conflicts:
	db/schema.rb
Merge pull request #724 from theodi/feature-certificate-auditing

Certificate auditing