GHC 7.8.3 release

[Kazu Yamamoto (=?iso-2022-jp?B?GyRCOzNLXE9CSScbKEI=?=)]

Hi Austin,

> I ask this because my time to dedicate to GHC is a bit thin right now,
> so you must help me decide what's important! So please let me know -
> just a general vote in favor of doing it within some X timeframe (even
> 'real soon' or 'a week would be great') would be nice.

Would you give a look at: 
	http://www.haskell.org/pipermail/ghc-devs/2014-May/004990.html
	http://www.haskell.org/pipermail/ghc-devs/2014-May/004993.html

yesod-bin cannot be compiled with the coming GHC 7.8.3 yet. I believe
regression was introduced.

--Kazu