Update faq.rst

mmm... grammar
Merge pull request #842 from mulka/patch-1

Update faq.rst
Remove py==1.4.22 from requirements_dev.txt.

It's not a direct dependency for Gunicorn. Only used by py.test.
signals.rst: Improve English slightly
Merge pull request #843 from msabramo/patch-1

signals.rst: Improve English slightly
Update design.rst

Double "are".
Merge pull request #849 from hebertjulio/patch-1

Update design.rst
added timezone to logging
Merge pull request #850 from silarsis/master

added timezone to logging
Respect logger_class setting unless statsd is on
Merge pull request #853 from alq666/alq666/logger-class

Respect logger_class setting unless statsd is on
Raise a RuntimeError if asyncio is not available.

Fixes #830.
fix tests
Merge pull request #854 from benoitc/fix/830-2

fix asyncio worker handling
bump to 19.1.1
document the 19.1.1 tag
fix copyright
add missing people to THANKS