updated to support explicit keys
Merge branch 'master' of github.com:wordnik/swagger-ui
Correct description of collections of object and nested
fixed #340 with empty body, updated swagger-js
Merge remote-tracking branch 'upstream/master'

* upstream/master:
  fixed #340 with empty body, updated swagger-js
  updated to support explicit keys
Changed to use relative path for images/throbber.gif for mounting into apps at different levels