multiQuery has(), g.V('pk', byteArray) bug patches.

multiQuery has() throwing IllegalArgumentException bug fix.
https://github.com/thinkaurelius/titan/issues/439 bug fix patch.

Cannot query g.V('primaryKey', byteArray) because byte[] is converted to List<Byte>
https://github.com/thinkaurelius/titan/issues/443 bug fix patch.