rhbz1110627 zanata init

https://bugzilla.redhat.com/show_bug.cgi?id=1110627
and https://bugzilla.redhat.com/show_bug.cgi?id=1038852

Depends on https://github.com/zanata/zanata-api/pull/15 and https://github.com/zanata/zanata-server/pull/520
I think this method has too much responsibility - it should not deal with the console, the caller can print the failure message if this returns `Optional.absent()`. Without the console, this can be reused in other contexts.