Create CloudStack&OpenStack+OpenSource4Cloud.md
Update CloudStack&OpenStack+OpenSource4Cloud.md

添加整体比较部分
Update CloudStack&OpenStack+OpenSource4Cloud.md

提交存储等比较部分
Update CloudStack&OpenStack+OpenSource4Cloud.md
Update CloudStack&OpenStack+OpenSource4Cloud.md
Merge pull request #2 from Cloud2014/patch-2

Update CloudStack&OpenStack+OpenSource4Cloud.md
（刘成全提交）
Merge pull request #14 from duanxiaoyan/master

OpenSource4Cloud小组作业（第一版）