Upgrade to Scala.js 0.6.0-M1 and Scala 2.11.2.
Get rid of deprecation and feature warnings.

This also removes *very* old methods which have not been supported
by browsers for a long time already.
Fix EOLs in WebGL.scala.
Remove TypedArrays.scala, use js.typedarray._ instead.
Remove configuration to publish to Bintray.
Update organization.
Remove auto-publishing from Travis.
Add configuration to publish to Sonatype.