Rhbz1124630 - remove RESTEasy dependency from client

by switching to jersey as JAX-RS implementation, in fedora we could save users 200MB download.

Depend on zanata/zanata-parent#36

Not really depend on this but it's nice to have (especially in preparation for Fedora packaging) zanata/zanata-api#22
From a scriptability point of view, it is good to output to stdout and stderr, which can be redirected to pipes, grepped, etc.  

If this were C, I would suggest using `isatty(stdout)` to decide whether to use fancy console features or just write to stdout.  In Java, it might be better to have a command line option (eg --avoid-console or --plaintext).