comments: display comment previews while submitting Instead of just saying 'Submitting' and not showing any progress to the user until the comment has been accepted by the server, show a preview of the comment above the comment box in a way which is makes it obvious to the user the comment is being submitted. Apart from that, also clear the comment box so that a repeated clicking the submit button doesn't result in a duplicate comment. The preview doesn't highlight URLs or support @mentions or *bold*, which is a good enough approximation in this case. When/if we (re-)add the rST/Markdown support, we will need a client-side parser for the syntax we choose. When the submission fails, display a message and offer the user to retry or cancel the submission.

[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