Log4j2 packages should be excluded by default

[LorenzoBettini]

Motivation

Currently, the launch configuration excludes by default the following packages java.util.logging, org.apache.log4j, org.slf4j, org.apache.commons.logging but in Log4j2 the package for logging is different: org.apache.logging.log4j, and you get survived mutants when removing Log4j2 logging statements.

Proposed Solution

org.apache.logging.log4j should be excluded as well by default.

I'll try to provide a PR

[LorenzoBettini]

I was wondering if we could have a new release with this change

[echebbi]

I should have the time to release a new version by tomorrow

[echebbi]

@LorenzoBettini I just release Pitclipse 2.0.1 which should include this improvement.