Log Message:
Update to 2.51. From the changelog for 2.5:

* An HTML mail option.
* SMTP support.
* html2text 2.0.
* A gaggle of bug fixes.
* A gaggle of small improvements.

And for 2.51:

* Fixes a crash in older versions of Python on slow feeds.

pkgsrc changes:

* Set the versions of rss2email.py and html2text.py in one place.