tree de42f7ff0a80024eedd8e996b72e7dce15b8cc22
parent f32e1d8f7c22df4c93f56c1b5e9874a56fead733
author Scott Baker <smbaker@gmail.com> 1432867460 -0700
committer Scott Baker <smbaker@gmail.com> 1432867460 -0700

disallow duplicate user names