Configuration for gateway topology for providers 
and specifically for authentication.
Merge remote-tracking branch 'origin/master'
Minor changes to formatting after merge.
Remove all references to ambari.
Refactored modules.  Simplified API class names.
More SPI class name simplification.
Fix service modules to have service in name.
Fix service modules to have service in name.
Change ClusterDescrioptor to GatewayDescriptor.  Change descriptor root tag to <gateway>.
Fix a leftover class names with cluster in them.
Made GatewayConfig an interface so GatewayMessages and GatewayResources could be moved back to gateway-server module.
Invoke loaded deployment contributors.
Spring Security module, deployment contributor for updating web.xml
spring security module, spring security deployment contributor, deployment contributor consolidation.
Create new func test pattern based on war deployment (i.e GatewayWebHdfsNonSecFuncTest)
Merge remote-tracking branch 'origin/master'
Comment out debugging save or war structure to disk.
Make the GatewayWebHdfsNonSecFuncTest work more like the real server.
Change pivot to dispatch everywhere.
Removed last usage of cluster from code.  Still in some config files and comments.