Fix #1051: Remove RuntimeLong.notEquals(that: Any)
Fix #1064: Make scala.scalajs.test.internal.ConsoleTestOutput protected
Fix #779: Remove JSArraySeq
Remove deprecated members
Remove 0.5.5 compat key aliases
Fix #1031: Coerce sbt settings for optimizer in a single setting
Merge pull request #1075 from gzm0/cleanup

Cleanup
Rename references to optimizer that (wrongly) call it inliner
Merge pull request #1081 from gzm0/cleanup-sbt-keys

Cleanup sbt keys