ipa <command> -h only showed the summary string, not the full help.
Use the full docstring. Add a custom help formatter that disables
optparse's reformatting.
Test included
https://fedorahosted.org/freeipa/ticket/3543
Move the parser setup from bootstrap_with_global_options to bootstrap,
so all API objects have access to it.
Add some CLI tests for the help system.
Part of the effort for https://fedorahosted.org/freeipa/ticket/3060
Petr Viktorin