msgpack: Haskell Platform 2014.2 Support

	modified:   msgpack/msgpack.cabal
msgpack-rpc: Haskell Platform 2014.2, conduit-extra >= 1.1.3

	modified:   msgpack-rpc/Network/MessagePackRpc/Client.hs
	modified:   msgpack-rpc/Network/MessagePackRpc/Server.hs
	modified:   msgpack-rpc/msgpack-rpc.cabal