qnd: added zlib to user_deps due to updated centos repo for the zlib package on feb 23rd. Without zlib, a conflict message will appear when installing.

git-svn-id: svn+ssh://kelev.kaltura.com/usr/local/kalsource/backend/server/trunk/on-premise/all@95163 6b8eccd3-e8c5-4e7d-8186-e12b5326b719
qnd: adapted to github paths