Add Either library, change Maybe API, and add tap to Touch library.
Switch how ADT's are displayed. Should have no visible effect.
Add the `mergeEither` signal and remove some dead code from Touch.js.
Ensure that touch listener is detached if it is not used.
Add type hints for new libraries, and fix the types of fps and fpsWhen.
Update runtime.
Change throw "..." to throw new Error("...")

When throwing plain strings, the stack trace and original location of
the error seems to get lost, and you can't click on the exception in the
Firebug logs to jump to where the exception was thrown.
Add `xor` function.
Merge pull request #78 from dobesv/master

Change throw "..." to throw new Error("...") in the generated Javascript code
Merge branch 'master' of https://github.com/evancz/Elm
Remove extra parens! Was a parse error :|
Add xor to runtime.
Fix silly error with `mergeEither`.
Latest RTS
Update to work with pandoc >= 1.10. Hopefully this is not another annoying change in which people cannot get 1.10 working on their machine.
Make Pong more concise.
Minify RTS and bump version number.
Make records faster using `in` and `Object.create` and profiling. I was seeing improvements of 6 or 7x for individual operations.