logging: don't change the log level in the handler config I find it confusing that even though the log level for sqlalchemy.engine was INFO, because the log level of handler_console_sql was WARN, there were no INFO output from sqlalchemy.engine. Therefore remove the level setting for the handlers in the default settings. I think this makes it (a bit) more intuitive.

[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