hg: read everything from hgrc, without config section whitelisting (Issue #246) The whitelisting seems pointless, is hard to maintain, and can't be customized. Also, mercurial.localrepo.instance will read the full config file anyway.

pytest >= 4.6.6, < 5.4
pytest-sugar >= 0.9.2, < 0.10
pytest-benchmark >= 3.2.2, < 3.3
pytest-localserver >= 0.5.0, < 0.6
mock >= 3.0.0, < 4.1
Sphinx >= 1.8.0, < 2.4
WebTest >= 2.0.6, < 2.1
isort == 4.3.21
pyflakes == 2.1.1