ipalib.frontend: Do API version check before converting arguments
This results in the proper message being shown if the client sends
an option the server doesn't have yet.
It also adds the check to commands that override run() but not __call__,
such as `ipa ping`, and to commands run on the server. Adjust tests
for these changes.
https://fedorahosted.org/freeipa/ticket/3963
Reviewed-By: Martin Kosek <mkosek@redhat.com>