Instructor may now update courses
Instructor can edit a course... now with tests passing
Merge branch 'master' of https://github.com/elizabrock/coursewareofthefuture
adding missing files
Fix links to course.
reloads the form after failed update
Merge branch 'master' into dev

* master:
  Delete unnecessary .keep files.
  Complete implementation of assignment prerequisites
  Refactor out Material#link
  Refactor shared material functionality into the Materiable module.
  Update code climate repo token
  Users can be marked as observers that don't receive email messages.
  Rename spec file
  IRC widget embed
  :banana: this are the changes for the prerequsites but there is something is not working
  Updated failing tests.
  Staged tests for assignment prerequisites
  Rename Prereading to Prerequisite
  Working progress on prerequsits
  :bird: created a prereading model and controller
Merge branch 'dev'

* dev:
  reloads the form after failed update
  Fix links to course.
  adding missing files
  Instructor can edit a course... now with tests passing
  Instructor may now update courses