templates: back out the DataTables paging disabling from c5bff92d5084 Lessons learned: * It was not sufficiently tested with gravatars. * It was not sufficiently tested on Chrome - Firefox seems to handle some big pages better. * It is unclear how big amounts of data we want to optimize for, but this regressed too much for some cases.

[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