Revision 276989

1. Updated repository work; now has the following from Russel Gold's contrib
 -uses <get> to get
 -sets a classpath after
2. some changes to Get to make this work. They also lay the way to adding progress indicators to guis, if that is felt useful in IDEs (it may be, once downloads become more common)
3. starting on security. This will need to work with <checksum> to get done. Currently the md5 can be fetched if asked for, and if so it must exist.