Allow underscore on first label. Doesn't fix tests.
Allow underscore on first label. Doesn't fix tests.

murrown/cyder,akeym/cyder,drkitty/cyder,drkitty/cyder,akeym/cyder,murrown/cyder,OSU-Net/cyder,drkitty/cyder,drkitty/cyder,murrown/cyder,zeeman/cyder,zeeman/cyder,OSU-Net/cyder,akeym/cyder,OSU-Net/cyder,akeym/cyder,zeeman/cyder,OSU-Net/cyder,zeeman/cyder,murrown/cyder