GTNPORTAL-3103 Edit permissions are not updated in REST API
Initial support for impersonation added
Minor: adding message
Fixed bugs related to impersonation. Removed CancelImpersonationFilter
Changed display name for impersonated user
GTNPORTAL-3089 - added css files
GTNPORTAL-3089 - added impersonation icon
Minor changes
Use UTF-8 encoding in ImpersonationServlet before decode params