Added Informing and Documenting trait, mixed them in to all style traits, changed GivenWhenThen to have self type Informing with Documenting and commented out GivenWhenThen object.
Mixed in Informing to DocSpecLike, removed Documenting self-type from GivenWhenThen.
Removed 'implicit' from info/markup in style traits, and mixed in Informing and Documenting to path style traits.
Merge branch 'ticket-124' of https://github.com/cheeseng/scalatest