Remove uPortal dependency from clearPass module

https://issues.jasig.org/browse/CAS-1250
Per UP-3621, uPortal dependencies and classes are moved back to the uPortal codebase. This frees clearPass from declaring the old UP impl as a required dependency. UP related classes are to be removed and build cleaned up.
Fixed formatting issues in pom.
Merge pull request #186 from Unicon/CAS-1250

CAS-1250: Remove uPortal dependency from clearPass module