Updated project/scalatest.scala to use latest test-interface version, and updated release version to 2.0.M6-SNAP14 to match build.xml.
Updated project/scalatest.scala to use latest test-interface version, and updated release version to 2.0.M6-SNAP14 to match build.xml.

SRGOM/scalatest,triggerNZ/scalatest,triggerNZ/scalatest,flicken/scalatest,flicken/scalatest,matterche/scalatest,cheeseng/scalatest,dotty-staging/scalatest,matterche/scalatest,cheeseng/scalatest,gcberger/scalatest,janekdb/scalatest,gcberger/scalatest,cheeseng/scalatest,rahulkavale/scalatest,flicken/scalatest,janekdb/scalatest,janekdb/scalatest,rahulkavale/scalatest,SRGOM/scalatest,rfries/scalatest,janekdb/scalatest,gcberger/scalatest,triggerNZ/scalatest,rfries/scalatest,SRGOM/scalatest,matterche/scalatest,scalatest/scalatest,dotty-staging/scalatest,scalatest/scalatest,rfries/scalatest,scalatest/scalatest,flicken/scalatest,triggerNZ/scalatest,rahulkavale/scalatest,dotty-staging/scalatest,matterche/scalatest,SRGOM/scalatest,gcberger/scalatest,rahulkavale/scalatest,rfries/scalatest