Add support for transpiling noflo-runtime-xx to ES5, refs https://github.com/noflo/grunt-noflo-browser/commit/18c133c0c56ebf42309bff388eac4d994f6610c9
Add support for transpiling noflo-runtime-xx to ES5, refs https://github.com/noflo/grunt-noflo-browser/commit/18c133c0c56ebf42309bff388eac4d994f6610c9

noflo/noflo-browser,noflo/noflo-browser