relax MonadCatchIO-transformers and mtl deps #20

Merged
merged 2 commits into from Apr 23, 2012
Commits on Apr 23, 2012
  1. relax blaze-html dependency, as heist builds fine with blaze-html 0.5…

    markwright committed Apr 23, 2012
    … (does not require blaze-markup dep in heist.cabal)