The logic behind updating users for headpin referred to variable that wasn't declared.
If running in headpin mode, don't show default_environment option.
Merge pull request #75 from omaciel/bz1005427

The logic behind updating users for headpin referred to undeclared variable.

This fixes https://bugzilla.redhat.com/show_bug.cgi?id=1005427
Merge pull request #76 from omaciel/bz1005429

If running in headpin mode, don't show default_environment option.
converting cli to use new repo discovery api
Merge pull request #77 from jlsherrill/new_products

converting cli to use new repo discovery api