Fix ImageReplicator so it only count's nodes that are enabled as well. Fix password regeneration on update/upgrade and freshinstall if fog user already existed.  Was still looking for commons/config.php rather than the new location lib/fog/Config.class.php

git-svn-id: https://svn.code.sf.net/p/freeghost/code/trunk@1866 71f96598-fa45-0410-b640-bcd6f8691b32
Fix references to commons/config.php to lib/fog/Config.class.php

git-svn-id: https://svn.code.sf.net/p/freeghost/code/trunk@1867 71f96598-fa45-0410-b640-bcd6f8691b32
Update changelog with fixes additions.

git-svn-id: https://svn.code.sf.net/p/freeghost/code/trunk@1868 71f96598-fa45-0410-b640-bcd6f8691b32