o.c.cagateway: Added signal handler.
o.c.archive.reader.aapi: Replaced the old AAPI JAR with version 2.4.1
o.c.logging.log4j: New plugin for log4j. Added JMS appender.
o.c.utility.jms: Added two classes that will only be used by the
CssJmsAppender.
o.c.archive.sdds.server.feature: Added missing plugin.
o.c.archive.sdds.server: Checkstyle.