v1.1.0

• supports tests with Django 2 and 3 now
• drops Django 1.11 tests and future support

Merged pull requests:

• Django 3 support #404 (Koed00)
• ability to use a Redis connection URI - closes #402 #403 (valentinogagliardi)
• Replacing ugettext\_ functions with gettext\_ for Django 3 #399 (theunraveler)
• Preserve database connection when sync=True #393 (Urth)
• Fix scheduler concurrency with multiple clusters #347 (maerteijn)
• Fix timeout override #333 (tremby)