postfix: Add mailname support

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
postfix: Only set the relayhost if specified

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
postfix: Allow setting the TLS key/cert paths

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
postfix: Add mynetworks and submission port

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
postifx: Add sasl support

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
postfix: Allow overriding the bind addresses

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
postfix: Enable TLS

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
cloudprint: Remove the bundle

The chrome print service has recently stopped working, this solution was
also pretty unreliable and resource hungry. Instead, a new
implementation based on https://github.com/armooo/cloudprint should be
implemented directly as part of the cups bundle.

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>