Basic references for taxon concepts
Fixed small JS error that was throwing a console error (trying to reset
a form that didn't exist)
Added references to distributions
Fixed reference delete for taxon concepts
Fixed references delete url
Added the ability to search for exisiting references when adding a
distribution
Added search for reference to taxon concepts
Merge branch 'master' into reference_relationships

* master:
  Display reference stat
  fixed the way hash annotations are imported
  slight improvements to cites listing changes form
  Added Sapi.database_summary method. Added rake import:stats task
Removed unnecessary and empty specs. Amended admin distributions controller spec
Split references forms in to tabs
Fixed references addition
Revamped the handling of adding references to Taxon Concepts so that
it's more Railsy and magic, and far les hacky (except maybe a little bit
of the JS).
Added specs and a fix for deleting TC references
Added reference test for distribution
Merge branch 'master' into reference_relationships

* master:
  replaced current_listing_changes with current_additions in checklist web output
Removed unneeded test, added attr_accessible
Changed form submission so that hidden forms are not sent
Changed the autocomplete to match parts of the word inputed
Fixed a bug with the Checklist that prevented cached downloads from
being served.

When a cached download was found, Checklist.new() was not being called,
meaning that none of the global variables were being defined by
Checklist#initialize_params(). Checklist#summarise_filters relied on
these variables being available, and so Checklist#initialize_params() is
now called by itself when a cache is available.
Fixed distribution references UI