Fixed: issue with not clearing the container.
UI changes for personalise student view.
added api call to get the list of units and respective assignments.
Merge remote-tracking branch 'upstream/dev-branch' into dev-branch

* upstream/dev-branch:
  Fixed Can't delete class, Delete button is not displayed & functional
  Modified Unitstatus api integration and added comments
  added comments and setId for field
  Added elipses for unit name at unit setup.
  Changes for class setup implemented
  Addded itemsequence number to reorder.
  added unit seq
  "static text updated to properties file for unit assignment view"
  "removed the assignments "
  implemented tooltip for student view
  "Added tick image for the analytics"
  "added code for the bar chart in the teacher summary"
  Implemented Re-order assignment on unit setup.
  implemented updateUnitStatus api integration
  "static text changes updated to message properties file"
Merge pull request #1731 from anilgooru/dev-branch

Fixed: issue with not clearing the container.