This directory is used for tracing the execution of the Mule server.

Application-level logging is configured in the file "../conf/log4j.properties" (by default
all output is sent to the console).

System-level logging is configured in the file "../conf/wrapper.conf" (by default all
output is sent to the file "../logs/mule.log"

Note that, unless the application is run in the foreground ("./mule console"), this means
that while the application itself is configured to send its output to the console, the
wrapper receives the console output and sends it to the log file.

In addition to the application's output, the wrapper also sends any JVM-level or OS-level
errors/warnings to the log file.  This means that if the JVM crashes and automatically
restarts (enabled by default), the time and cause of the crash will remain in the log
file after the JVM restarts.
