libmenu-cache3 from X11:lxde project

对于 Fedora 21，请以根用户 root 运行下面命令：

cd /etc/yum.repos.d/
wget https://download.opensuse.org/repositories/X11:lxde/Fedora_21/X11:lxde.repo
yum install libmenu-cache3

对于 openSUSE Tumbleweed，请以根用户 root 运行下面命令：

zypper addrepo https://download.opensuse.org/repositories/X11:lxde/openSUSE_Tumbleweed/X11:lxde.repo
zypper refresh
zypper install libmenu-cache3

对于 openSUSE Slowroll，请以根用户 root 运行下面命令：

zypper addrepo https://download.opensuse.org/repositories/X11:lxde/openSUSE_Slowroll/X11:lxde.repo
zypper refresh
zypper install libmenu-cache3

对于 16.0，请以根用户 root 运行下面命令：

zypper addrepo https://download.opensuse.org/repositories/X11:lxde/16.0/X11:lxde.repo
zypper refresh
zypper install libmenu-cache3