editable sandbox shipments
applied low level caching to S+ search and S+ and Checklist autocomplete
added search cache to checklist web search
fixed idiotic typo in cache iterator
fixed another not so clever typo
based cache_key on updated at, with associated objects touch + touch step in mview recalculation
added a touched_at column to use for checking whether mview recalculations have actually updated anything
updated table annotations and schema.rb
Merge pull request #79 from unepwcmc/caching

Caching
use the CITES associations in Checklist outputs
Amendments to about page
Merge branch 'master' of github.com:unepwcmc/SAPI

Conflicts:
	app/models/checklist/checklist.rb
do not invoke Sapi.rebuild in historic migration
Merge branch 'master' into editable_sandbox_shipments
deleting individual shipments
removed redundant .gitkeep files
rewritten routes in coffee script
fixed spacing