setup.sh脚本下载percona的好像出问题了，更新了一下

setup.sh脚本下载percona好像有问题，更新setup.sh脚本好像也有问题。简介已更新:# setup per ConA per ConA _ shared = per ConA-server-shared-56-5 . 6 . 21-rel 70.0 . el6 . x86 _ 64 per ConA _ shared _