The NonRelease pattern matcher is ony checking for the third segment, but for sbt 1.x, we need to check both the second and third segment since 1.1.0-M1 would be bincompat with 1.0.
Fixessbt/sbt#3360
Dotty is versioned as 0.*, but `CrossVersionUtil#binaryScalaVersion`
will return the full version instead of just `major.minor` for all
compiler versions < 2.10, add a special case for Dotty to avoid this.
Note: I used tabs in this commit to match the style of the surrounding code.
There is sometimes the need to use a test version of Scala that is
intended to be binary compatible with a standard release version.
At this time, due to the particular logic implemented within sbt,
a non-numeric suffix will never have the same binaryScalaVersion
of a release version ending in ".0", like for instance "2.11.0".
This commit allows developers to use as suffix any string that
begins with "-bin", for instance "2.11.0-bin-compat-test-1".
Such a suffix will have a binaryScalaVersion of "2.11", being
therefore considered binary compatible with release versions.