Removed call to StatusPrinter in PropertyActionTest.java

filter to allow or deny a specific given level. ThresholdFilter allows any logging events whose level is
higher or equals to its configured level.

ASF has authorized us to adapt and make use of their ICL agreement.

Added an example in mdc page

Corrected variable naming not to conflict with existing variable names
Example enumeration corrected

removed HelloWorld3 example

Minor addition to team.xml

Now mentionning the availability of AbstractMatcherFilter in the "implement your own filter" section of filter.xml

There is now an intermediate class under Filter to provide onMatch and onMismatch options.

It returns the ACCEPT value for events whose level is equal or greater to the user provided level, and DENY otherwise.

On Unix the separator for variables is ':' not ';'

temporary changes to SampleLogging.java

Refactored the way that we load classes: we now use the context's classloader.

Simplified Loader.getResource method

minor fix on build.xml