webui: rename IPA.user_* to IPA.user.*
Or in other words, move all objects which belong to user module to the module.
Therefore they no longer pollutes the main 'IPA' module.
Therefore:
require('freeipa/ipa').user == require('freeipa/user')
Reviewed-By: David Kupka <dkupka@redhat.com>
Reviewed-By: Thierry Bordaz <tbordaz@redhat.com>