More neatly run through the groups, then the other nodes within the group.

git-svn-id: https://svn.code.sf.net/p/freeghost/code/trunk@2537 71f96598-fa45-0410-b640-bcd6f8691b32
More refining of snapin replicator.

git-svn-id: https://svn.code.sf.net/p/freeghost/code/trunk@2538 71f96598-fa45-0410-b640-bcd6f8691b32
Merge svn with dev-branch