Clarify install instructions.  Professor must configure class so that the proper tabs are displayed for the professor and his/her students.
Clarify install instructions.  Professor must configure class so that the proper tabs are displayed for the professor and his/her students.

git-svn-id: 236d1da889b004185c53d75d23fb6bdc6a50cecb@878 54a900ba-8191-11dd-a5c9-f1483cedc3eb

nswinea/cliniccases,nswinea/cliniccases,nswinea/cliniccases