Changes

<li>CentOS 7 Live CDFull Install DVD: http://mirrorvault.csclubcentos.uwaterloo.ca/centosorg/7.2.1511/isos/x86_64/CentOS-7-x86_64-LiveGNOMEDVD-1511.iso<br><br></li> <li>CentOS 7 Full Install DVDLive CD: (Not required for labs, but for rescue purposes only): <br> http://vault.centos.org/7.2.1511/isos/x86_64/CentOS-7-x86_64-DVDLiveGNOME-1511.iso</li>