config: refactor beaker configuration While refactoring: * drop support for 'cache.' prefix - it is only 'beaker.config.' that ever has been documented or used in examples * make prefix stripping more safe (if the prefix should appear twice in the key) * trust exactly what has been configured - drop stripping of strings * drop int conversion of 'expire' - beaker documentation suggests strings are fine

[pytest]
# only look for tests in kallithea/tests
python_files = kallithea/tests/**/test_*.py
addopts =
    # --verbose
    # show extra test summary info as specified by chars (f)ailed, (E)error, (s)skipped, (x)failed, (X)passed, (w)warnings.
    -rfEsxXw
    # Shorter scrollbacks; less stuff to scroll through
    --tb=short