add curve segment storage

modify server.ini and deploy.md

fix snaptool bug

Update deploy.md

Merge pull request opencurve#44 from bai-charisu/master

add clean curve at curve-ansible

Merge pull request opencurve#38 from bai-charisu/master

fix ansible and deploy.md

Merge pull request opencurve#22 from bai-charisu/fix-ansible

fix: curvefsTool and curve-ansible for centos

fix: ansible deploy mutiple machine