[plt-scheme] Storage of PlaneT packages

Hi Eliben,

I keep this program around to remind me what goes where.

(require (lib "dirs.ss" "setup") (lib "config.ss" "planet"))
; DrScheme built in collections
(printf "Collects: ~a\n" (find-collects-dir))
; Collections you install manually or develop yourself
(printf "Manually: installed ~a\n" (find-user-collects-dir))
; The Planet cache
(printf "Planet cache: ~a\n" (CACHE-DIR))