refactor path.FunSpec and path.FreeSpec into classes

git-svn-id: http://scalatest.googlecode.com/svn/trunk@5026 fd1274fd-080f-5963-8033-43ee40fcd1de
Move *Matcher.scala and MatcherGen1.scala to the matchers package.


git-svn-id: http://scalatest.googlecode.com/svn/trunk@5027 fd1274fd-080f-5963-8033-43ee40fcd1de