Update __init__.py
Update __init__.py

 take care with scientific linux : solve:

[bb-b34-x6][DEBUG ] detect platform information from remote host
[bb-b34-x6][DEBUG ] detect machine type
[ceph_deploy][ERROR ] UnsupportedPlatform: Platform is not supported: scientific linux
osynge/ceph-deploy,codenrhoden/ceph-deploy,ceph/ceph-deploy,rtulke/ceph-deploy,ktdreyer/ceph-deploy,zhouyuan/ceph-deploy,ghxandsky/ceph-deploy,SUSE/ceph-deploy,Vicente-Cheng/ceph-deploy,osynge/ceph-deploy,imzhulei/ceph-deploy,jumpstarter-io/ceph-deploy,shenhequnying/ceph-deploy,alfredodeza/ceph-deploy,jumpstarter-io/ceph-deploy,isyippee/ceph-deploy,ddiss/ceph-deploy,SUSE/ceph-deploy,zhouyuan/ceph-deploy,alfredodeza/ceph-deploy,Vicente-Cheng/ceph-deploy,codenrhoden/ceph-deploy,shenhequnying/ceph-deploy,ktdreyer/ceph-deploy,SUSE/ceph-deploy-to-be-deleted,branto1/ceph-deploy,ddiss/ceph-deploy,rtulke/ceph-deploy,SUSE/ceph-deploy-to-be-deleted,isyippee/ceph-deploy,trhoden/ceph-deploy,ghxandsky/ceph-deploy,ceph/ceph-deploy,branto1/ceph-deploy,trhoden/ceph-deploy,imzhulei/ceph-deploy