use triggered map from response_set to speed up SurveySection#questions_for_certificate
use foreign key rather than loading association for comparison
include dependencies of survey questions
preload response->answers
match the response_set embed rules
Merge pull request #406 from theodi/delayedjob

DelayedJob
simplified select condition
Merge pull request #405 from theodi/certificate-page-performance

Certificate#show performance improvements
Merge branch 'master' into jurisdictions
fixes to country names

This turned out harder than it should have been, partly because the XML
file that was supplied with the country codes and names wasn't properly
character encoded. Sigh.
copy fixes
don't correct the format of the full_title
another copy change
sort jurisdiction list
Merge branch 'jurisdictions' of github.com:theodi/open-data-certificate into jurisdictions
Merge branch 'jurisdictions' into stage