Shapefile download generator returns immediately if no WDPA IDs are
given
Download generator no longer attempts to upload to S3 if now download is
generated (due to no WDPA IDs given)
Update cartodb layer for july
Downloads include WDPA T&Cs and Data Standard as required
PA Slugs include designation as well

This is because some PAs have the same name, varying only by
designation, which causes obvious issues for our slug URLs :)

Also moves the slug generation to a model method. I think it's better
placed here, and allows us access to all available PA attributes rather
than futzing around in the DataStandard class and sharing data.
search works on subterms
Merge branch 'viz-stats' of github.com:unepwcmc/ProtectedPlanet into geo_stats
PA Show page no longer loads geometry in to Rails

This would be just a normal performance tweak, but has become an
unfortunate necessity as previously selecting a PA with large (many
points) geometry would crash the Rails process due to RGeo/AR trying to
load it in to memory as an object.

Example -- WDPA ID 2898

This adds a `.without_geometry` scope to `SELECT` all attributes except
`the_geom`, and changes the PA bounding box calculation to use pure SQL
as once again, large geometries and RGeo just don't mix.
cartocss on the fly for protected area page
addWdpaTiles only if data-wdpa-id?
add search_lexemes table
camelcase convention for variable name
add Search::Similarity class
align db_structure.sql
add search_for_similar to Search
make SearchController use new Search structure
better formatting for cartocss
Merge pull request #58 from unepwcmc/cartodb

Cartodb
use new search in search page
simplify HTML structure and use strong, not bold