add develop module. remove reexport Web.Apiary from Web.Apiary.Heroku.
change response body functions behaviour(append -> set). add append* functions.
version bumps
update travis-install
update dependencies.
fix actionWithWebSockets don't exec action.
change class structure(MonadHas -> MonadExts). update skelton.
remove ActionT'.
add action vault. change extMiddleware class.
re-add middleware to Extension class.
update submodules.
update examples.
change Dict IR(use HashMap).
fix ghc-7.6. update submodules.
Merge branch 'hashmap-dict' into develop
explicit import. remove unused LANGUAGE pragmas.
fix on ghc-7.6.
refactoring Document.Html.
update document: unuse SProxy.
new session submodule