Increased latest version to 2.2.1b0 [skip ci]

5 jobs for master in 33 minutes and 29 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #168113
docker
build_linux_36

00:19:37

passed #168126
macosx
build_macosx_36

00:16:17

failed #168116
macosx
build_macosx_36

00:00:02

failed #168114
macosx
build_macosx_36

00:00:02

 
  Deploy
passed #168115
docker
deploy_beta

00:03:17