Initial version of TestRegistration trait that works with FunSpec.
Added more tests for stack depth in FunSpecSpec and fixed discovered stack depth problem.
Make fixture.FunSpecLike to mixin fixture.TestRegistration.
Make fixture.FunSpecLike to mixin fixture.TestRegistration.
Make TestRegistration in org.scalatest to have self type of org.scalatest.Suite.
Make WordSpecLike to mixin TestRegistration.
Make fixture.WordSpecLike to mixin fixture.TestRegistration.
Removed commentted code in WordSpecLike.scala and move registerTest and registerIgnoredTest tests under correct scope in WordSpecSpec.scala.
Make FunSuiteLike to mixin TestRegistration.
Make fixture.FunSuiteLike to mixin TestRegistration.
Added the missing 'with TestRegistration' in FunSuiteLike.scala.
Merge branch 'test-registration-3' of https://github.com/cheeseng/scalatest
Back out the enhancement to path.FunSpecLike that made it
implement TestRegistration.