new 5.51 sources for 3270 3370 3390 6840 7240 7360 7270-16mb
 * files not uploades yet
 * fedback needed
(refs #2130)

git-svn-id: file:///var/svn/freetz/trunk@10771 149334a1-2f27-0410-a3b9-fc62619ac1e6