Updated the Log4J 2.x configs to include the date (%d) in the output and increased the scope of the org.apache.commons.httpclient logger to org.apache.
Removed the extra space that was left in the due to the fiasco with the "Thread Context Stack/Nested Diagnostic Context" Conversion Pattern (%x).
Cleaned up the DecommissionHttpLoggingTest to not look for the spaces.
Cleaned up the Slf4jHttpLoggingTest to not look for the spaces.
Cleaned up the ReposeValveTest to not look for the spaces.
Merge pull request #1208 from rackerlabs/Log4J2xConfigUpdate

Updated the Log4J 2.x configs.