lift the timebomb - this test rate limiting share between 2 nodes has failed for sometime, now the issue seems fixed
The errors for missing config files are really noisy

This makes them quieter, and reduces them to a WARN level, because
they're not really errors. (But they might be)
Trace log the stack trace
update remove timebomb
update test per comment
update typo
Merge pull request #1161 from rackerlabs/fix-timebomb

please merge this if test pass to lift timebomb issue.
Merge pull request #1162 from rackerlabs/quieter_spurious_errors

The errors for missing config files are really noisy
Updated the POM dependencies to the new Log4J 2.x.
Updated all of the refereneces from org.apache.log4j.Logger to org.apache.logging.log4j.Logger.
Updated all classed that were extentions of AppenderSkeleton to implementations of Appender.
Migrated the old Log4J 1.x properties file to the new Log4J 2.x XML file.
Added the Log4J 2.x core test-jar to the test scope.
Updated the RequestHeaderServiceContextTest to use Log4J 2.x.
Fixed an issue with PowerMock and the JMX service by adding an Ignore annotation for javax.management.*.
Updated the variable names for consistency with the sample code.
Updated the groovy tests to use Log4J 2.x.
Updated the slf4j-http-logging tests to use Log4J 2.x.
Updated the tests to reflect the non-@ClassRule anotated way of doing business.
Added a new test specific log4j2 configuration file.