Change OpenSSH package download location from personal Dropbox to Slackware mirror.  No difference in package.  Only done to maintain highest security by pulling from known source.

Added custom build putty package.  Not full putty package; only contains puttygen from the dev build branch.  This is useful as now it is possible to run puttygen from unraid command line against previously created private key (ssh-keygen).  This enables the user to create the majority of key types needed from single location.  May also be wrapped into webgui at a later date.

Version bump from 1.0 to 1.2