Moved exclude to directly under matrix in travis build file.
Moved exclude to directly under matrix in travis build file.

scalatest/scalatest,dotty-staging/scalatest,dotty-staging/scalatest,scalatest/scalatest,cheeseng/scalatest,scalatest/scalatest,cheeseng/scalatest,cheeseng/scalatest,dotty-staging/scalatest