Rewrite of copyfiles -- much better now.
Rewrite of copyfiles -- much better now.

git-svn-id: d8bfcd070c2c81762cca1b3912331324182919ba@17887 0d6f1817-ed0e-0410-87c9-987e46238f29

bozimmerman/Zimodem,bozimmerman/Zimodem