Added pathway id for api and implemented in classpage services.
Merge remote-tracking branch 'upstream/dev-branch' into dev-branch

* upstream/dev-branch:
  Rectified compilation error.
  "Item sequence issue resolved in Unit setup"
  Issue rectified with pagination after assignment move and disabled edit
  "Class overview text is updated to Add Assignments for teach page"
  Fixed player issue
  class units load issue resolved
  fixed css issue for student tooltip
Merge pull request #1747 from anilgooru/dev-branch

Added pathway id for api and implemented in classpage services.