split plugins repos up

[maennchen]

principle question:
Why do we put all of the plugins into a single repository?
We could move them into their own repository and make them available via bower. This'd be much more comfortable to use and also to maintain.

[maennchen]

(This repo could serve just a README mentioning all plugins.)

[benlangfeld]

@maennchen Anyone who authors a plugin is welcome to do this, I don't think there's any impediments to doing so. Maybe someone could trial this with a new plugin and let us know how it goes?