[Boost-testing] Support for python 3 regression runs

Subject: [Boost-testing] Support for python 3 regression runs
From: Tom Kent (teeks99_at_[hidden])
Date: 2018-10-27 12:17:18

I've created a pull request for allowing regression runners to be running
Python 3 (Python 2 is end of life in 14 months!).

https://github.com/boostorg/regression/pull/46

There are still a couple issues left (maybe tied to the environment the
build is running in?) that I was hoping to get some other eyes on.

Tom