Updated templated to Django format.

Modified {% snippet ... to {% gizmo ...
Changed {$ resource .. to {% static ...
Removed options. or c. from file so it only contained the variable name.
Removed multiline comments.
Merge branch 'master' of github.com:swainn/django-tethys_gizmos

Conflicts:
	tethys_gizmos/templates/tethys_gizmos/gizmo_showcase/index.html