Update the builderworker to fix the lack of license code, and to create dev nodes like libcontainer.

Dockerfile.buildworker

@@ -33,6 +33,7 @@ ADD workers workers
 
 ADD app.py app.py
 ADD config.py config.py
+ADD license.pyc license.pyc
 
 # Remove this if we ever stop depending on test data for the default config
 ADD test test