Some refactoring for nicer YAML output (preserve order and prefer block-literal strings
Some refactoring for nicer YAML output (preserve order and prefer block-literal strings

annegentle/wadl2swagger,rackerlabs/wadl2swagger,rackerlabs/wadl2swagger,annegentle/wadl2swagger,rackerlabs/wadl2swagger,annegentle/wadl2swagger,rackerlabs/wadl2swagger,annegentle/wadl2swagger,annegentle/wadl2swagger