This change is related to LBCORE-52.

Test that Joran does continues processing in presence of errors and that 
it registers status messages

In WriterAppender, getPresentationFooter and getFileFooter are now printed in the correct order, 
presentation footer first, file footer last.

Improvements to the section regarding parentheses in PatternLayout

the bestEffortLoadClass returns null.

the callerClass computed by R.getCaller class can be null.

Added documentation and test cases for STARTTLS and SSL support.

Added support for plain user password authentication. 

Furthermore, support for both STARTTLS and SSL connections were
added. Note that STARTTLS differs from SSL in that, in STARTTLS, the
connection is non-encrypted in the beginning and only after the STARTTLS 
command is issued by the client (if the server supports it) does the 
connection switch to SSL. In SSL mode, the connection is SSL from the 
start.

FileAppender will now automatically create parent directories as needed.

- added unit tests 
- updated the documentation

- Allow TimeBasedRollingPolicy to delete old files if asked by the user.
- PeriodicityType are now listed in an enum.

- renamed ClassPackagingDataCalculator as PackagingDataCalculator
- added calculatePackagingData method to ThrowableProxy so that converters can
  force calculation of packaging data
- added relevant test cases

Increase slack factor to 8 for Sun's JDK 1.6. For some reason, slack factor of 6 for JDK 1.5 was insufficient.

- improved "demo" page
- Sync with SLF4J (1.5.3)

Class packaging information is now automatically added to stack traces formatted by PatternLayout

Not using Geronimo JMS instead of Sun JMS to avoid manual installation

this change reduces the probability of that happening