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
Is there a situation in which we would want to ship a program that is missing any of the prompt strings? If not, we may want to have this terminate the program instead so that we can't accidentally ship a broken program.