ScalaJS support and publishing to bintray

Hi,

I made the library cross scala/scalajs, that means that it should work not only at the server but also in the browser, that in future will allow to do cool stuff like integration with browser genome viewers and webgl protein visualization libs. I also added settings that allow to publish to bintray. For the test reasons I tried my organization credentials, but in future we should move it to your bintray, Shadaj.