fixed up view and template for ``view results`` ``cases`` with select_related, etc.
fix many perf issues

* templates that made duplicate calls
* better use of select_related and prefetch_related
* fixed bug in ModelFilter where it made duplicate queries
* added a bunch of indexes to tables
travis testing
fix name of travis file
update release notes
Merge branch 'master' into 1.4.9
tweak to link