Ensure test_util.BINARY is bytes under Py3k.
Ensure test_util.BINARY is bytes under Py3k.

claimsmall/protorpc,google/protorpc,craigcitro/protorpc,google/protorpc,claimsmall/protorpc,google/protorpc,craigcitro/protorpc,craigcitro/protorpc,claimsmall/protorpc,claimsmall/protorpc,craigcitro/protorpc,google/protorpc