Undertow 1.0.0.CR3
Merge pull request #5865 from stuartwdouglas/undertow

Undertow 1.0.0.CR3
Refactor single sign-on implementation in org.wildfly.clustering.web.spi/infinispan modules.
Implement distributable SSO support for Undertow.
Upgrade Undertow to 1.0.0.CR3
Initial subsystem work for single sign on
Drop superfluous re-authenticate attribute of <single-sign-on/>.
domain attribute of <single-sign-on/> should not be required.
Add Lifecycle support to SingleSignOnManager.
Create SingleSignOnManagerService that properly invokes the lifecycle methods of the SingleSignOnManager.
Integrate support for distributable SingleSignOnManager.