jsx plugin can load and build submodules
build should not include jsx as the file is already transformed
module id doesn't need to be rewritten if you properly include the plugin id into the registry
updated demo build's include paths
Updated Readme
Updated r.js to not strip "use strict"; if not used by itself on one line.  This fixes errors when r.js strips "use strict" out of JSXTransformer because JSXTransformer uses 'use strict' as a condition in an if block (this patch has been submitted to r.js)
updated ignore