Drop the syslog.target requirement based on http://www.freedesktop.org/wiki/Software/systemd/syslog/

[systemd] Drop syslog.target and add dbus.socket requirement.

Signed-off-by: Marko Saukko <marko.saukko@jolla.com>
Merge pull request #4 from mer-packages/fixes

Drop the syslog.target requirement based on http://www.freedesktop.org/w...