Changed pretty toString of Spread to use '+-' instead of 'plusOrMinus'.
Changed pretty toString of be (a/an [...]) from "be a/an className" to "be (a/an [className])".
Removed dirty methodName used to construct pretty toString in words package, and use case class like pretty message in its place.
Added pretty toString to ResultOfBeWordForAny, ResultOfIncludeWordForString, ResultOfStartWithWordForString, ResultOfEndWithWordForString and ResultOfFullyMatchWordForString in Matchers.scala.
Removed ResultOfElementWordApplication in Matchers.scala which is no longer in used.
Completed pretty toString for words in Matchers.scala.
Merge branch 'pretty-toString-2' of https://github.com/cheeseng/scalatest