There has been a lot of renaming and restructuring in babel, so we need
to modify our code to handle the latest version. We also need to adjust
the way we build our babel worker as babel itself no longer runs in older
browsers such as Internet Explorer.
Several of the major browsers now natively support modules, so we
only need the converted modules to handle older browsers. Make sure
it's only used when necessary.
This changes around `utils/use_require.js` to be able to generate any
of AMD (RequireJS), CommonJS, SystemJS, or UMD modules. The three
former also include support for translating `vnc.html`, producing a full
"app" version of noVNC.