Admin message

Self sign-up has been disabled due to increased spam activity. If you want to get access, please send an email to a project owner (preferred) or at gitlab(at)nic(dot)cz. We apologize for the inconvenience.

Reloading individual zones via knotc
`knotc reload <zone>` would: * reload individual <zone> * `knotc reload` will still reload all (taken from #284)
issue