adding syslog support to log4j

This PR includes adding syslog support into the log4j.properties for repose-valve.  Additionally we have exposed all the parameters that are available in the containers.cfg.xml.  These additional parameters add the parameters for configuring ssl support.  Also making some of these parameters optional cleans up the deprecated warning that shows up when you configure some "connection-timeout", "read-timeout", and "proxy-thread-pool" within the container.cfg.xml in newer versions of repose.