routing: separate url handling from routing - move it to webutils This is a helper method relying on the thread local tg.request. We didn't have a good place to put it. Now we do. This (re)moves unfortunate dependencies to the routing module (which almost is a controller).

pytest >= 4.6.6, < 5.5
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, < 3.1
WebTest >= 2.0.6, < 2.1
isort == 5.1.2
pyflakes == 2.2.0