Classes Password / PasswordHash added for an essential strengthening of the password security

git-svn-id: svn://isteam.dynxs.de/wb_svn/wb280/branches/2.8.x@1900 98bf1eab-f5fc-0310-a3ed-aac8851f7404
little corrections in class Password

git-svn-id: svn://isteam.dynxs.de/wb_svn/wb280/branches/2.8.x@1901 98bf1eab-f5fc-0310-a3ed-aac8851f7404