Changes to work with latest kenyaui 1.11 and uiframework 3.0
* Page decorator provides custom favicons
* Fragment actions which can be invoked by non-authenticated users are annotated with @PublicAction
* Use OPENMRS_CONTEXT_PATH instead of CONTEXT_PATH in js scripts
Added support for redirecting back to referring page from the login page
Fixed broken HFE authentication dialog when user leaves username or password blank
Updated to latest kenyaui 1.11