Changed to use SBT 0.13.0-RC5 in scalatest.scala.
Throw IllegalArgumentException when -A is passed into Framework and ScalaTestFramework.
Tweaked error message of IllegalArgumentException when -c, -P (concurrent) is passed into Framework/ScalaTestFramework.
Throw IllegalArgumentException when -q (suffixes) is passed into Framework/ScalaTestFramework.
Removed unnecessary Retryable tag in FrameworkSuite.scala.