lua-cjson from home:uibmz:opsi:4.2:development project

For Univention 4.4 run the following as root:

echo 'deb http://download.opensuse.org/repositories/home:/uibmz:/opsi:/4.2:/development/Univention_4.4/ /' > /etc/apt/sources.list.d/home:uibmz:opsi:4.2:development.list
wget -nv https://download.opensuse.org/repositories/home:uibmz:opsi:4.2:development/Univention_4.4/Release.key -O Release.key
apt-key add - < Release.key
apt-get update
apt-get install lua-cjson