Adding support for generating swagger responseClass and models from Grape Entities
Adding grape-entity to gemspec
Correcting readme example
Reversing whitespace change
Fixing class naming which was breaking Travis builds
Fixed support multiple API versions
Support resource groupings for prefixed APIs

The fact that an API has a prefix (e.g., /api) should not affect the
way resources are grouped for documentation purposes.  This patch
updates the hardcoded single level of resource grouping to ignore the
prefix (which available as part of the route object).
Merge remote-tracking branch 'Drakula2k/patch-1' into master
Merge remote-tracking branch 'calebwoods/grape_entity_support'

Conflicts:
	lib/grape-swagger.rb
merge entity with models per-route
use ruby-version. default to 2