libidn2 from home:mbhangui project

对于 CentOS 7，请以根用户 root 运行下面命令：

cd /etc/yum.repos.d/
wget https://download.opensuse.org/repositories/home:mbhangui/CentOS_7/home:mbhangui.repo
yum install libidn2

对于 RHEL 7，请以根用户 root 运行下面命令：

cd /etc/yum.repos.d/
wget https://download.opensuse.org/repositories/home:mbhangui/RHEL_7/home:mbhangui.repo
yum install libidn2

对于 ScientificLinux 7，请以根用户 root 运行下面命令：

cd /etc/yum.repos.d/
wget https://download.opensuse.org/repositories/home:mbhangui/ScientificLinux_7/home:mbhangui.repo
yum install libidn2

对于 SLE 12 SP5，请以根用户 root 运行下面命令：

zypper addrepo https://download.opensuse.org/repositories/home:mbhangui/SLE_12_SP5/home:mbhangui.repo
zypper refresh
zypper install libidn2

对于 SLE 12 SP4，请以根用户 root 运行下面命令：

zypper addrepo https://download.opensuse.org/repositories/home:mbhangui/SLE_12_SP4/home:mbhangui.repo
zypper refresh
zypper install libidn2

对于 SLE 12 SP3，请以根用户 root 运行下面命令：

zypper addrepo https://download.opensuse.org/repositories/home:mbhangui/SLE_12_SP3/home:mbhangui.repo
zypper refresh
zypper install libidn2

对于 SLE 12 SP2，请以根用户 root 运行下面命令：

zypper addrepo https://download.opensuse.org/repositories/home:mbhangui/SLE_12_SP2/home:mbhangui.repo
zypper refresh
zypper install libidn2

对于 SLE 12 SP1，请以根用户 root 运行下面命令：

zypper addrepo https://download.opensuse.org/repositories/home:mbhangui/SLE_12_SP1/home:mbhangui.repo
zypper refresh
zypper install libidn2

对于 SLE 12，请以根用户 root 运行下面命令：

zypper addrepo https://download.opensuse.org/repositories/home:mbhangui/SLE_12/home:mbhangui.repo
zypper refresh
zypper install libidn2