Causes Windows app not to start

[cdipierr]

From what I can tell, this line:
channel.waitForInitialization('onEmmAppConfigReady');

Will cause Windows apps never to startup. I realize the plugin doesn't support Windows, and that's fine, but bringing it into a project that's designed for cross platform creates a problem here.

Suggested fix would be to just bail on the channel creation/wait if we're running on Windows platform.