Sorry for the delays in getting this posted, I've been doing a lot of
traveling lately.

The attached version of org-crypt fixes a few bugs and is just about
ready to be included in org proper.  The only thing it might need before
inclusion in org is automatic encryption via hooks.

I'd like to find out how people feel about that.  Should org-crypt
attach itself to org-mode-hook so that it can decrypt encrypted entries
after you open an org file?  At first I thought yes, but now I'm leaning
towards no, you should decrypt entries manually as needed.

I do think that org-crypt should hook itself into before-save-hook so
that all entries that *should* be encrypted are encrypted before the
file touches the disk.  A user of org-crypt shouldn't have to worry
about setting up a hook, it should just happen automatically.

Any suggestions on the best way to make that happen in org-crypt?