switched from hard coding main views to loading a configuration file.
Sidepane (options) are now generated from the config file.
Initial code added for saving the state of the app.
Allows library to save tab in state.
Added code to query user if leaving a page.
Merge branch 'ww3' of https://github.com/openwebwork/webwork2 into ww3-feature/app-state

Conflicts:
	webwork3/public/js/apps/CourseManager/CourseManager.js
	webwork3/views/layouts/manager.tt
Clean of a few errors in saving the app state.
Merge branch 'ww3' of https://github.com/openwebwork/webwork2 into ww3-feature/app-state
removed some of the old hard-coded view information.
Restored the link to WW2
Merge pull request #348 from pstaabp/ww3-feature/app-state

Ww3 feature/app state