UP-3083 Fixed IE9 toolbar button gradients

Also includes a hefty _buttons.scss refactor job. Skin developers now have much more flexibility when styling buttons and are no longer limited to working with configuration variables.
UP-3083 Compiled css...
UP-3550: portlet preferences provided via config mode can be lost when editing existing portlets
UP-3622: Disable URL Rewriting for Tomcat7
UP-3621: Refactor clearPass support for uPortal

CAS clearPass declares a dependency on old uPortal-impl to provide support for uPortal. Classes are to be moved back to the uPortal codebase and clearPass support cleaned up.
UP-3626 Complete consolidation of impersonation logic
UP-3630 Switch to base64 string in varchar

Switch from byte[] for member address data base64 and
store in varchar. This resolves a problem with MySQL
and byte[] as part of a key
Revert "UP-3624"

This reverts commit 690fb8f1e4036452bdc1893d8e1a3e76f457c5fc.
Revert "UP-3624"

This reverts commit d028ae7ddb7c9f393d38bd9440414f8b9f4bc174.
UP-3635 Add permanent link option to graph view
UP-3633 Fix DataSource/MBeanServer dependency ordering

Switch to portlet-utils-jdbc tomcat datasource factory and
explicitly wire the mbean server dependency
Updating dependency versions
UP-3634 Add exception logging root filter
UP-3634 Fix package name
UP-3635 Fix form init for permlink
UP-3636 Include username in thread name
Update license headers
Update NOTICE for new dependencies
UP-3613: Shibboleth and attributes user caching

Purge group and cache data for a user during authentication
UP-3641 Reduce primary key index length