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
It looks like this might no longer be handling the case where there are no server URLs in the user config. We should definitely be handling this case and direct the user to documentation, similar to when there is no user config.