Upgrade swagger-ui version

Refs #371. This should make our lives easier when we have to upgrade to the
next version, in which swagger 2.0 specification support is set to be
added.
Merge pull request #375 from girder/swagger-ui-update

Upgrade swagger-ui version
Add geospatial plugin
Remove superfluous colon in geospatial module stylus file
Change param types to query for POST /item/geospatial

For the latest version of Swagger UI.
Move geoJSON plugin out of this repo
Merge pull request #384 from girder/remove-geojson-plugin

Move geoJSON plugin out of this repo
Merge pull request #379 from girder/geospatial-plugin

Add geospatial plugin
Merge remote-tracking branch 'origin/master' into refactor-s3