The Centova Cast plugin by Paul works great... It's just missing some options:

It does not allow you to select auto dj and the settings for Auto Dj from the UI
and it does not allow you to select for reseller and the clients a reseller is allowed to have.

Here are the settings for the limits for resellers:
Maximum bit rate: Kbps Maximum accounts: UnlimitedListener slots (total): UnlimitedDisk quota: MB (soft quota) Unlimited OversellData transfer limit: MB/month Unlimited OversellBandwidth limit: Kbps UnlimitedAutoDJ capabilities:PermittedProhibited (streams MUST use an offsite source) When transfer limit is exceeded: Perform the default actionSuspend reseller and shutdown/suspend reseller's clientsNotify reseller and administrator but take no action When disk quota is exceeded: