notifications: improve response time when number of notifications is large NotificationsController always retrieved materialized list of all notifications in database, even to display only 10 of them. This is improved by feeding SQLAlchemy Query object directly to webhelpers.paginate.Page, avoiding eager load of all notifications.

[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