Scala XML 2.0.1

[cheeseng]

Updated to scala-xml 2.0.1 for those that's possible.

[bvenners]

@cheeseng I'm consistently getting this test failure with this PR:

[info] WaitersSpec:
[info] A Waiter 
[info] - should pass through even exceptions that would not normally cause a test to fail *** FAILED *** (71 milliseconds)
[info]   java.lang.NullPointerException:
[info]   at org.scalatest.concurrent.WaitersSpec.$anonfun$new$16(WaitersSpec.scala:130)
[info]   at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.scala:18)
[info]   at org.scalatest.concurrent.Conductors$Conductor.$anonfun$threadNamed$1(Conductors.scala:545)
[info]   at org.scalatest.concurrent.Conductors$Conductor$TestThread.run(Conductors.scala:577)
[info]   ...

Can you see if you can reproduce that using current 3.2.x-new? Thanks.

[cheeseng]

@bvenners I can't reproduce the problem, it is one of the common flickers as far as I can tell, may be you can try to exit sbt and try sbt testQuiick?