[MERGE] Add and use _get_protocol_factory_for_bytes function (protocol v3 patch 3/7)

Mon Apr 28 21:42:22 BST 2008

John Arbash Meinel has voted tweak.
Status is now: Conditionally approved
Comment:
It seems a bit odd to have MESSAGE_VERSION_THREE versus 
REQUEST_VERSION_TWO

I also don't see any direct tests for _get_protocol_factory_for_bytes, 
which seems like an important function (IMO).

For details, see: 
http://bundlebuggy.aaronbentley.com/request/%3C20080423225750.GG9546%40steerpike.home.puzzling.org%3E