sbt 1.12.0-RC1

Hi everyone. On behalf of the sbt project, I am happy to announce sbt 1.12.0-RC1. This is the twelfth feature release of sbt 1.x, a binary compatible release focusing on new features. sbt 1.x is released under Semantic Versioning, and the plugins are expected to work throughout the 1.x series. Please try it out, and report any issues you might come across. &#xA; The headline features of sbt 1.12.0…