Minor fixes to denorm data sources

doclist_view ensuring one row per document (srcUrl) and
film_detail_summary (select distinct to handle films with multiple
release years)
Merge pull request #65 from chrshffmn/master

Minor fixes to denorm data sources
Merge branch 'master' of https://github.com/cspace-deployment/Tools
Merge branch 'master' of https://github.com/jblowe/Tools