v5.0.0a18

[integration]

CHANGE: (#671) RegistryManager/ConfigurationManager use BaseRequestHandler
CHANGE: (#670) SiteSummary/ResourceSummary use BaseRequestHandler
CHANGE: (#669) ProxyManager use BaseRequestHandler
CHANGE: (#668) UploadProxy use BaseRequestHandler
CHANGE: (#667) PublicStateManager use BaseRequestHandler
CHANGE: (#666) RequestMonitor use BaseRequestHandler
FIX: (#665) Changing group or setup
CHANGE: (#664) SpaceOccupancy use BaseRequestHandler
CHANGE: (#663) SystemAdministrator use BaseRequestHandler
CHANGE: (#662) TransformationMonitor use BaseRequestHandler
CHANGE: (#661) VMDirac use BaseRequestHandler
FIX: (#659) Sending extraCredentials when using X509 based RPC calls on behalf of users.
CHANGE: (#659) The X-RefreshConfiguration header can no longer be used to force a refresh of the CS.
FIX: (#657) remove showAll button
FIX: (#656) Bug fixes
CHANGE: (#656) remove unused UserCredentials
FIX: (#649) use ComponentMonitoringClient instead of deprecated ComponentMonitoringDB in SystemAdministrationHandler