monoidA is now more in line with other concepts.
Some minor fixes & monoidA instance restored.
Fixed some issues with certain invocations of various bind-wrappers.
Updated parsec tutorial to make use of eitherT on the function monad.
Updated parsec I tutorial to new library API.
Fixed monoid::id that broke the laws!
Updated parsec II tutorial to use eitherT.
Added monad transformer example to readme.