Remove jersey dependency from curator and replace with Apache CXF

Per some stuff I was reading, e.g., http://wiki.apache.org/incubator/ClerezzaProposal, and I noticed that Jersey is incompat with ASL licensing since it uses CDDL, so we need to replace it with something compat. I found cxf.apache.org, which looks like it provides JAX-RS as well, so here we go!