Claim python3 compatability for Newton onwards
Claim python3 compatability for Newton onwards

The following oslo.messaging changes make sure python3 works:
Id630cb32dc5fe29774ae9e0d2766535906f605bf
I5cd7475618f7a7532db770c2c5c61576a657fbb4
I1f8bb964aef23867a651e192dc355635e36f78a1

This one adds a functional test for py34:
Ibc695762fb12b60a8094be187001dd2bd42f402e

Which is enabled in the gate:
Ifdbd4ab1eae6c5e5364a99906995dff3bb1ff4f0

The following re-enables voting for py34 unit tests:
Ibbcd20d297fdf90ce846f0162329b9410cd6f482

With all the above, we are ready to claim python3 support

Change-Id: Ie89f96cee0eadcad5f84dd0423645b894eec9116

ozamiatin/oslo.messaging,ozamiatin/oslo.messaging