Edit footer version to be 2.2

- upgradeeeeeeeeeeeeeeeeee
5 jobs for 2.2-dev in 2 minutes and 57 seconds
Status Job ID Name Coverage
  Test
passed #2779
Go-py2.7

00:01:39

passed #2780
Go-py3.4

00:01:32

passed #2781
Go-py3.5

00:01:32

passed #2782
Go-py3.6

00:01:27

 
  Lint
passed #2783
Go-flake8

00:01:18