Bug 453678 - Upgrade to Jetty 9.2.5 for Mars M4, and 9.3 for Mars M5
Bug 453675 - touch org.eclipse.equinox.server.p2 for new httpcomponents
Bug 453675 - touch org.eclipse.equinox.server.p2 for new httpcomponents
Bug 454183 - [http] Update implementation of legacy HttpService on top
of the whiteboard implementation

Change-Id: I9b63d53c401e445da150aac0895243e14b8da5dd
Signed-off-by: Thomas Watson <tjwatson@us.ibm.com>
Bug 454183 - [http] Update implementation of legacy HttpService on top
of the whiteboard implementation

 - update the tests

Change-Id: Id8af5e5a4588feaf97d72ae07f1018df5f4d8550
Signed-off-by: Thomas Watson <tjwatson@us.ibm.com>
Bug 454288 - [http] legacy filter registrations are applied to all
ServletContextHelpers, should be only applied to HttpContext ones
Bug 454289 - [http] legacy filters are init'ed and destroyed with every
HttpContext lifecycle
Bug 454295 - [http] servlet EventListener types are all tracked under
the super class type EventListeners
Bug 454256 - [http] add customizer to provide default context selection
and context path prefix