Echo JS 0.11.0

I agree that it's better to have a small module, but currently it's only me on this and the codebase is actually not that large. So even though some features may be extracted, we're talking about starting 1-js-file repositories and that just seems like too much of an overhead at this point (in other words, it will just make my life harder).

Besides, keep in mind that it could be a lot clearer with a gentler/partitioned introduction + demonstration + sample usage repo. I will hopefully get to it at some point (any help is welcome ;) ).