Pointed SSL keys to default (system-installed) keys that would work
out-of-the-box.
Changed max size of emails from 50MB to 512MB to avoid problems on
default installations (some customers like sending big emails
sometimes).
Some additional cosmetic changes.
- split up postfix configs for courier and dovecot, so people do not do/install unneeded stuff
- renamed deprecated config keys (upstream is backwards compatible until further notice, so you don't need to change them unless you really want to)
- removed most default values, distros ship the default configs in /usr/share anyway.
- debian etch is untouched, so is suse (for now)
