Added a template for a view of a single skillset.

This is, for example, the page for "Visual Thinking," showing all the
challenges available and users who have earned this badge.

Also the "fixtures" directory has the sample JSON I used to test the
template.
New url for http response
New flat-ui bootstrap
Added view and sample context for /challenge/:id

Please note the strange "Examples" array being referenced. My
explanation is here:
https://github.com/visd/VISD-Badges/wiki/The-%22Examples%22-stream
Starting html views
Added template, renamed existing

Added a users_detail template (in /templates) and matching JSON sample
data (in /fixtures).

Renamed some of the previous templates to bring them in line with the
naming conventions of Django's generic views. Templates are now either
foos_list or foos_detail, to match urls of /foos and /foos/:id.
Merge branch 'master' of https://github.com/visd/VISD-Badges

* 'master' of https://github.com/visd/VISD-Badges:
  Added template, renamed existing
  Added view and sample context for /challenge/:id

Conflicts:
	badges/templates/base.html
Acidentally ignored
Merge branch 'custom-user' of https://github.com/visd/VISD-Badges into custom-user

* 'custom-user' of https://github.com/visd/VISD-Badges:
  Updated manifest, added events app
  Fixed clear typo in arguments for create_user
Fixed Merge
Flattedend the stucture a bit
Merge branch 'master' into custom-user

* master:
  Flattedend the stucture a bit
  Fixed Merge
  Acidentally ignored
  Added template, renamed existing
  Starting html views
  Added view and sample context for /challenge/:id
  New flat-ui bootstrap
  Added a template for a view of a single skillset.

Conflicts:
	api/serializers.py
	badges/templates/events.html
	badges/templates/events_index.html
	badges/templates/skillset_list.html
	badges/templates/skillsets_index.html
	settings.py
	templates/events.html
	templates/skillset_list.html
	urls.py