Release Dotty 0.16.0-RC3

Release Dotty 0.16.0-RC2

Release Dotty 0.16.0-RC1

Revert to original version of scalatest and disable timeouting test

Release Dotty 0.15.0-RC1

Release Dotty 0.14.0

Release Dotty 0.14.0-RC1

Release Dotty 0.13.0

Merge pull request scala#5946 from dotty-staging/no-dottyLatestNightl…

…yBuild

Stop using dottyLatestNightlyBuild in community build

Release Dotty 0.12.0