
 First draft version of the extension PDD. Documents the existing API,
 but the existing API is incomplete.

 This PDD is based in large part on extend.pod, written by Dan Sugalski,
 and on the comments in extend.c


git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@5371 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot