Initial checkin of code to create a side pane for all messages.
Merge branch 'ww3-feature/show-all-messages' into ww3-feature/test

* ww3-feature/show-all-messages:
  Initial checkin of code to create a side pane for all messages.

Conflicts:
	webwork3/public/js/models/ProblemSet.js
Merge branch 'ww3-feature/clean-up' into ww3-feature/all-messages-sidepane

* ww3-feature/clean-up:
  More cleanup of messaging in Library Browser.
  Added stop acting as user functionality.
  Added logout functionality
  Fixed some errors with message templating.
  cleanup of the sidepanes of the library options, problem set list, user list.
  Revert "Added "Goto Target Set Button" on the library options side pane."
  cleanup of the sidepanes of the library options, problem set list, user list.
  Added "Goto Target Set Button" on the library options side pane.
  more refinements of the sidebar.
  Fixed the functionality and look of the open/close side pane
  Added a open/close button to the side pane.
  Some removal of old code.

Conflicts:
	webwork3/public/js/apps/CourseManager/CourseManager.js
Changed the styling on the All Messages side pane.
When errors in setting the date occurred, two messages were sent.  Deleted one.
Set the all messages side pane to scroll when too many messages.
Only certain side panes can be viewed for each main view.
Fixed some issues with the stop acting as user.
Changed sidebar to side pane to be consistent.
Changed sidebar to sidepane.
Fixed link to ww2 in order to keep effective user.
Changed sidebar to sidepane.
Changed the way "act as user" works in the class list view.
Fixed a bug with the target set in the library options not being enabled.
The "Bugs" link wasn't working.
Merge pull request #369 from pstaabp/ww3-feature/clean-up

Ww3 feature/clean up
Fixed functionality of Problem List Options in viewing a problem list.
Updated backbone-stickit,images loaded, jquery-ui, jquery, moment,
Merge pull request #381 from pstaabp/ww3-feature/js-libs-update

Ww3 feature/js libs update

Merging js vendor changes.
Merge branch 'ww3-feature/js-libs-update' into ww3-feature/clean-up

* ww3-feature/js-libs-update:
  Updated backbone-stickit,images loaded, jquery-ui, jquery, moment,