viewer: print a usable URL in the 'serving on' log line

queue: print a usable URL in the 'serving on' log line

checker: don't forget 'codes' from linter config

checker: show version of each installed linter, even if it didn't need setup

checker: explicitly add python 2.7 and 3.5 to dockerfile

linters: add python_version variable to flake8 config

checker: support variables in linter config

checker: some linters could be requested, but skipped

checker: check linter config, complain and skip linters with problems early

templates: cancel nowrap from the whole table for commit messages Apparently uk-text-break is not the right helper class for this. Huh.