Start on trips, just models and basic form.
Merge branch 'master' into trips

Conflicts:
	public/javascripts/translations.js
Got the basic form working with most of the moving parts.
Merge branch 'master' into trips

Conflicts:
	db/structure.sql
	public/javascripts/translations.js
	public/stylesheets/index.css
Very basic trips/show.
Basic integration with journal.
first pass at admin only checklist refresh tools
taxonomic status, leaves, and iconic taxon filters working together
fixed taxonomic status filter not sticking around
Fixes #238
Bugfix: obs/export was bailing when taxon_name specified.
Captive filter should include nils when captive is false.
Tests for #238
Merge branch 'EvanBurchard-issue_234'
added admin_only refresh on listed_taxon
forgot to delete a puts statement
first pass at refresh tool for checklists
added translations for check_list tools
added hybrids to place/guides so counts match check_lists/show
improved threatened filter, haven't solved distinct issue