[nojira] Fix field name (over-)update.  Fields are not coresponding between attachment and media_url.rb
Merge pull request #139 from coyote/fix_gallery_id_generation

[nojira] Fix field name (over-)update.
[nojira]  Removing code cruft.   The action removed was VERY old and had a server
  URL baked into the code.  Also removed the associated gem that was only used
  by that action (HTTParty).
Merge pull request #141 from coyote/cruft_removal

[nojira]  Removing code cruft.
CYB-245 Remove students controller

 * unused code, cleanup
 * intended functionality now found elsewhere
 * removes students controller and its spec

https://jira.ets.berkeley.edu/jira/browse/CYB-245
CYB-246 Being liked should also score for the poster
  * adds a field on the activity model for the poster when type is an opinion
  * Activity.student_scores now sums values for poster on likes as well as for active actions
  * removing #index on likes_controller (unused)
  * requires a migration

https://jira.ets.berkeley.edu/jira/browse/CYB-246
[nojira] Remove activities controller (code cruft)
 * no actions on activities are done through its own controller, all happens
   in the model or other controllers
Merge pull request #140 from coyote/remove_student_controller

CYB-245 Remove students controller
Merge pull request #138 from johncrossman/CYB-243

CYB-243, deploy script needs validations and Thor task.  One Travis is green.
Merge pull request #142 from coyote/score_being_liked

CYB-246 Being liked should also score for the poster
Merge pull request #143 from coyote/remove_activies_controller

[nojira] Remove activities controller (code cruft)