Revert "Restore support for multiple ZooKeeperServer configurations"

This reverts commit 9c0b8bf4c696ce07a99070584725fb64cee3ae65.
Revert "Add an unmanaged profile to disable the agent"

This reverts commit 7e55d375ad59bcfabbbc3db050519c96c4825745.
Revert "[FABRIC-629] Remove dependency on blueprint from fabric-zookeeper"

This reverts commit c406aea044a17ec659f5f33251f95a03289d11c2.

Conflicts:
	fabric/fabric-core/src/main/java/org/fusesource/fabric/internal/ProfileOverlayImpl.java
	fabric/fabric-itests/smoke/src/test/java/org/fusesource/fabric/itests/smoke/JoinTest.java