Fix ImageReplicator and re-fix MulticastManager as this->FOGCore->getIPAddress is an array, same change as prior rev needed to be done for ImageReplicator

git-svn-id: https://svn.code.sf.net/p/freeghost/code/trunk@1765 71f96598-fa45-0410-b640-bcd6f8691b32
ADD README File.