Upgraded versions of spring, hibernate, slf4j and logback to their
latest versions as of 5/30/2014. Replaced referneces to marakana with
newcircle except for package names and group names.  Added a
RollingFileAppender that changes the name of the log file daily or if
the logfile size exceed 100MB.  Webapp and logfile directories are now
relative to CATALINA_BASE.