Bye bye Promise.

Also fixed a comment.

IOW, if there's an outstanding call is made for a given oid and tid,
and another call is made, the second call will use the result of the
outstanding call, rather than making another call to the server.

And move this file to the top of the project, as there was a similar
version ther.

Python 2 support

After reading run_until_complete doc :)

Conflicts:
	setup.py
	src/ZEO/asyncio/base.py

Uvloop

Conflicts:
	setup.py

Client side conflict resolution

TCP_NODELAY

Conflicts:
	setup.py
	src/ZEO/tests/protocols.test

See: https://github.com/zopefoundation/ZODB/issues/84

I'm losing my love of stubs. :(

Conflicts:
	src/ZEO/ClientStorage.py
	src/ZEO/StorageServer.py

Add SSL support +

It's sad no reviewer, but I suppose it can be reviewed even after a merge.

I'd missed that you could get a transport's socket using get_extra_info.