Improved Scaladoc for TestDataFixture.


git-svn-id: http://scalatest.googlecode.com/svn/trunk@4938 fd1274fd-080f-5963-8033-43ee40fcd1de
init ver


git-svn-id: http://scalatest.googlecode.com/svn/trunk@4939 fd1274fd-080f-5963-8033-43ee40fcd1de