Merge pull request #102 from bicofino/master

Changed SchemelessURLValidator to full_domain_validator on hosts/models....
Merge pull request #103 from bicofino/master

Changed HostUpdate role_required to group_required
Just need to instantiate PasswordInput
Merge pull request #106 from jproffitt/issue_104

Just need to instantiate PasswordInput
Better argument handling
Fixing duplicat arg problem
Merge pull request #107 from jproffitt/issue_105

Better argument handling