Rhbz1124630 - remove RESTEasy dependency from client

by switching to jersey as JAX-RS implementation, in fedora we could save users 200MB download.

Depend on https://github.com/zanata/zanata-parent/pull/36

Not really depend on this but it's nice to have (especially in preparation for Fedora packaging) https://github.com/zanata/zanata-api/pull/22