======Error Command======
In case of an error on the server the error is reported to the clients through an error command.

<code>
error <error code> <error text>
</code>
The error command is the only command that is not prefixed with a subscription id, since this would not be meaningful. Errors relate to the entire connection and not just one subscription (typically the last sent command by the client).

  * The ''error code'' is an integer representing the error that happened. Error codes are TBD.
  * The ''error text'' is a textual representation of the error which can be directly presented to a user.