Linux上安装 Review Board 图文教程，针对在 CentOS 系统下的安装步骤 进行 高亮标注。
ReviewBoard 5.0 Linux安装步骤：
https://www.reviewboard.org/docs/manual/5.0/admin/
https://www.reviewboard.org/docs/manual/5.0/admin/installation/linux/
安装ReviewBoard及其依赖：
yum install python-setuptools
yum install python-devel
yum install mod_wsgi
yum install memcached
pip install python-memcached
yum install patch
pip install ReviewBoard
pip install mysql-python
