Merge branch 'tvincent-master-patch-67652' into 'master'

Add python3.9 build, bump version number

See merge request !131
9 jobs for v2020.11.0 in 12 minutes and 23 seconds (queued for 4 seconds)
latest
Status Name Job ID Coverage
  Build Source
passed source #158761
linux

00:00:32

 
  Build
passed manylinux1_wheels #158762
linux

00:04:42

passed windows_wheel_python36 #158763
win

00:01:03

passed windows_wheel_python39 #158764
win

00:00:57

 
  Test
passed manylinux1_test_cp35 #158766
linux

00:01:50

passed manylinux1_test_cp39 #158767
linux

00:05:26

passed manylinux1_test_py27 #158765
linux

00:01:40

passed windows_test_python36 #158768
win

00:01:03

passed windows_test_python39 #158769
win

00:01:58