implement class Password and activate it (not implemented for use yet)

git-svn-id: svn://isteam.dynxs.de/wb_svn/wb280/branches/2.8.x@1930 98bf1eab-f5fc-0310-a3ed-aac8851f7404
typofixes in /install/save.php

git-svn-id: svn://isteam.dynxs.de/wb_svn/wb280/branches/2.8.x@1931 98bf1eab-f5fc-0310-a3ed-aac8851f7404