Finish clust -> clustering rename (and keep compatibility with -Dts.clust)

Conflicts:
	testsuite/integration/clustering/pom.xml
	testsuite/pom.xml
Merge pull request #6592 from rhusar/clustering_testsuite2

Finish clust -> clustering rename (and keep compatibility with -Dts.clus...
Use builder, not deprecated constructor
Merge pull request #6599 from bstansberry/fix-use-depr

Use builder, not deprecated constructor
JdkORB subsystem
Change openjdk-orb version to 8.0.0.Beta1-SNAPSHOT
Switch to wildfly-core 1.0.0.Alpha5-SNAPSHOT