Increased latest version to 3.0.1b0 [skip ci]

5 jobs for master in 6 minutes (queued for 4 seconds)
Status Job ID Name Coverage
  Build
passed #141179
docker
build_linux_27

00:04:46

68.0%
passed #141180
docker
build_linux_36

00:04:46

69.0%
passed #141181
macosx
build_macosx_27

00:05:47

68.0%
passed #141182
macosx
build_macosx_36

00:05:34

68.0%
 
  Deploy
passed #141183
deployer
deploy_beta

00:00:09