Fix LocationSelector2 and a couple of fixes highlighted by Graeme's smoke
tests
Adding demo data & a few minor bug fixes in the default template.
Merge pull request #473 from graeme-f/master

Adding demo data & a few minor bug fixes in the default template.
fast_select (first cut): single-step resource data retrieval with intelligent join splitting and differential field authorization, intended as replacement for select+extract combinations - currently only applied for XLS exports (other case migrations pending further tests)