dev-haskell/hashable: bump up to 1.2.0.4

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
dev-haskell/refserialize: bump up to 0.3.1.0

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
dev-haskell/shake: bump up to 0.6

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Loosen generic-deriving-1.4.0 template-haskell dep for ghc 7.7
Requested by `nand` add back lens-9999