ssmtp: Add AuthUser and AuthPass options.

Signed-off-by: Moritz Ulrich <moritz@tarn-vedra.de>
Forgot semicolon. (M)

Signed-off-by: Moritz Ulrich <moritz@tarn-vedra.de>
Added redis service with bunch of documentation.
Fixed: now using the configured redis package.
Removed options that are not vital, added an `extraConfig` for any
additional configuration options for flexibility.
Merge pull request #144 from the-kenny/ssmtp-user-pass

ssmtp: Add AuthUser and AuthPass options.
Merge pull request #182 from zefhemel/redis

Added redis service module with bunch of documentation.
ssmtp: fix eval
time.timeZone: Set the TZ environment variable, which is used by Java.
cleanup dd-agent
dd-agent: cleanup, add dogstatsd systemd service
fix trac tests
no ipv4ll at work
try to fix zfs into initrd