Package reviews needed for yi

[Lakshmi Narasimhan T V]

Hello,

I have some packages ready for review. These are needed for yi.

ghc-executable-path - https://bugzilla.redhat.com/show_bug.cgi?id=703502

ghc-ghc-mtl : https://bugzilla.redhat.com/show_bug.cgi?id=712280

ghc-concrete-typerep : https://bugzilla.redhat.com/show_bug.cgi?id=855588