Remove unused variable.
Add ability to make a category selectable only by team members.
Fix bug where changing categories does not take effect.
Fix category management breadcrumbs.
Check that the option isn't already set before setting it.
Strip titania_url class of all methods no longer in active use.
Remove unused properties.
Remove unused method.
Remove unused class.
Strip titania class of more obsolete stuff.
Remove unused constants.
Fix CAPTCHA output.
Remove obsolete method.
Merge branch 'ascraeus' into develop

* ascraeus:
  Remove obsolete method.
  Fix CAPTCHA output.
  Remove unused constants.
  Strip titania class of more obsolete stuff.
  Remove unused class.
  Remove unused method.
  Remove unused properties.
  Strip titania_url class of all methods no longer in active use.
  Check that the option isn't already set before setting it.
  Fix category management breadcrumbs.
  Fix bug where changing categories does not take effect.
  Add ability to make a category selectable only by team members.
  Remove unused variable.