Removed a completed TODO comment from the valve-launcher POM.
Added a test for the new application.conf override command line argument.
Updated Servo to take a command line argument that overrides the application.conf and put warnings everywhere.
Merge pull request #1089 from rackerlabs/REP-924

REP-924 Added command line override of the application.conf.
Removed the repose-aggregator/core/valve module completely.
Updated the Core POM to not include the removed module.
Updated the Spock Functional Tests POM to reference the new Servo jar.
Updated the Repose Valve directory in the Spock tests to point to the Serve Valve-Launcher.
Updated the initial logging message from "Logging system initialized!" to the Servo splash.
Initial update of the Spock functional tests to utilize the new Servo launcher.
Flattend the Repose Launcher test heirarchy moving the only concrete content from the AbstractReposeLauncher class to the only extending class ReposeContainerLauncher.
Removed the Spock functional test that did nothing more than duplicate the main() method of the Servo jar.
Removed the Log4J Appender that was trying to utilize System.out.
Updated the calls to the ReposeValveLauncher constructor that were doing the extra processing that already occurs in the other constructor.
Updated the POM for the Spock Functional Tests to utilize the installed artifacts for dependencies instead of copy them from the file system.
Changed the references to the Valve Jar file to be Servo Jar.
Changed the references to the Root War to be Repose War.
Added the new reference to the Jetty Jar.
Updated the Repose Valve Launcher tests to utlize the new references and Servo.
Changed the references to the Root War to be Repose War.
Updated the individual tests to utilize the new ReposeValveLauncher signature.
Added a ShutdownHookThread to the Servo Main in order to prevent dangling child Jetty processes when the Main thread is terminated.
This does not appear to be a perfect fix, but it is only failing/erroring on 100 of the over 2000 tests.