0.3.0.0

• Use FreeT monad to implement RequestT
• Change the type of callback given to requestT from r' -> m a to r' -> RequestT r r' m a

0.2.0.0

• Generalize mapRequestT and mapResponseT so that requests may be performed in middleware

0.1.0.0

• First public release
• Add the MonadRequest type class
• Add the RequestT monad
• Initial documentation