gearbox: avoid duplicate logging setup when calling make_app make_app initialized logging, while the gearbox common code does it too. Split make_app in two to be able to avoid the redundant call. The logging setup in make_app cannot be removed because it is needed for 'gearbox serve' and direct WSGI invocation, which does not pass through gearbox common.py.

[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