Fixed a bug where the state wasn't being saved when clicking a HW set in the sidebar.
The view name wasn't being shown in the navigation bar.
More fixes with the general tab structure and state saving.
Problem Sets Manager and Classlist manager now saving the sort field and direction.
Fixed an error where the back/forward arrows were disabled and a bug on the class list manager.
fixed a regression where the help side pane wouldn't open.
Fixed error in which Problem Sets Detail wasn't loading correctly.
Fixed bug where sorting the problem set manager by date didn't give the direction arrow.
The Problem Set Details pane problem options sidebar is now correctly saving the state.
Merge branch 'ww3-feature/back-button' into ww3-feature/problem-sets-manager

* ww3-feature/back-button:
  The Problem Set Details pane problem options sidebar is now correctly saving the state.
  Fixed bug where sorting the problem set manager by date didn't give the direction arrow.
  Fixed error in which Problem Sets Detail wasn't loading correctly.
  fixed a regression where the help side pane wouldn't open.
  Fixed an error where the back/forward arrows were disabled and a bug on the class list manager.
  Problem Sets Manager and Classlist manager now saving the sort field and direction.
  More fixes with the general tab structure and state saving.
  The view name wasn't being shown in the navigation bar.
  Fixed a bug where the state wasn't being saved when clicking a HW set in the sidebar.

Conflicts:
	webwork3/public/js/apps/CourseManager/main-views/ClasslistView.js
	webwork3/public/js/apps/CourseManager/main-views/ProblemSetsManager.js
	webwork3/views/main/general.tt
Added a checkbox toggle on the Problem Set Detail view to hide/show the time
Added a show/hide time checkbox to the Problem Set manager.