Bump to v2.2

4 jobs for release-2.1 in 56 seconds
Status Job ID Name Coverage
  Test
passed #126114111
python 3.4

00:00:54

passed #126114110
python 3.5

00:00:55

passed #126114109
python 3.6

00:00:55

passed #126114108
python 3.7

00:00:55