libxml2-2 from X11:Enlightenment:EWebKit project

需要 CentOS CentOS-6 ，用 root 執行：

cd /etc/yum.repos.d/
wget https://download.opensuse.org/repositories/X11:Enlightenment:EWebKit/CentOS_CentOS-6/X11:Enlightenment:EWebKit.repo
yum install libxml2-2