right thing.

(py-comment-region): let-bind comment-start to "## " so commented
regions get transformed into non-indenting comment lines.

(py-compute-region): Implement modification to rule for recognizing
"indenting comment lines".

- Added PyMac_BuildNumVersion

column zero.  Perhaps a kludge, but similar in nature to Emacs'
beginning-of-defun shortcut.

level after a return, raise, break, or continue statement.

Clarified some comments.

- Improved version of NeXT patching of $OPT
- Added new option --with-libs='lib1 lib2 ...'
- Define _REENTRANT when posix threads are in use

Now all we need to do is do the same for beta1 compared to 1.3.