Elm-server now works with the "new" structure of Elm as well. The elm
package exports Language.Elm.generateHtml which is equivalent to the
compileToHtml function of the old Language.Elm package.
Since a dependency on blaze exists either way, a separate elm-blaze
package is not necessary.
I am splitting the elm package up into several packages, elm itself
which exports the Language.Elm* modules and builds the compiler
executable, elm-server which contains the standalone, Happstack-based
Elm server and elm-yesod, which provides the generateWidget function
for using Elm together with Yesod.
