Update copyright headers for files changed in 2016
OPENAM-7684 Do not register auth level in map if it has null auth level
OPENAM-6270 CR-7546: Ensure auth module listeners are not removed after global config change
OPENAM-3856 CR-6254 Resolve initialization issues with AMAuthenticationManager
Fix for OPENAM-294 - review: CR-3351 Updating AMAuthenticationManager so it refreshes its internal state when an authentication module is created/deleted.
moved amserver/source into openam-core/src