remove 10.x constraint on chef
first swing at chef 11 support. next commit is also required.
don't try to upload an empty set -- this breaks on chef 11, but is wise
regardless.
remove ages-old stupid with threads
rename files for impending gem rename
should finish up the technical bits of the rename
rename, chef support notes.
added some extra verbosity for stupid things users do
expound on exit statuses.