Speed up "Browse WISE Library" page by refactoring LibraryController.java and changing domain object's associated fields to load lazily and using openSessionInViewFilter
Modified WISEWebSocketServlet.java to load fields eagerly, as it is cannot be handled by openSessionInViewFilter (it goes over TCP instead of HTTP)
Removed unused filters from web.xml, applicationContexts.xml, and dispatcherServlet.xml

Eventually we should upgrade to Spring 4.0 and use Spring's WebSocket support.
Merge branch 'master' of https://github.com/WISE-Community/WISE

# By breity
# Via breity
* 'master' of https://github.com/WISE-Community/WISE:
  Small style update for student progress display in classroom monitor
  Added Bootstrap Switch plugin library
  Added missing css update from last commit