WAF 2.x upgrade for 4.10

[Noel Power]

On 06/09/18 11:47, Alexander Bokovoy wrote:
[...]
>> Anyway I'll have a look, hopefully by the end of today or maybe tomorrow
>> I should have a patch set that allows configure/build at least under python3
> Looking forward to that!

https://gitlab.com/samba-team/samba/merge_requests/68

The only patch I am really unsure of is the one to do with the
web_server changes (which might be dead code) but I see no option but to
make the changes anyway right or wrong in order to get the build to work
(besides removing it)

Noel