v3.5 (2013-06-05)
* Added digest generation and post-processing hooks.
* Fix html2text configuration (ignored since 2012-10-04).
* Fix opmlexport crash due to orphaned feed data.
* Use feed names in OPML 'text' attributes.
v3.4 (2013-05-14)
* Added post-processing hooks for user-specified message manipulation.
* Added settings for IMAP delivery. The old `use-smtp` boolean has
been replaced by a new `email-protocol` setting. Non-IMAP users
should adjust their configuration to set `email-protocol` to
either `sendmail` or `smtp`.
v3.3 (2013-04-13)
* Fix SMTP message submission logic.
* Fix error inheritence (super() calls).
* Convert html2text parsing errors to `ProcessingError`s.
* Cleanup html2text error handling.
* Drop Google Reader rel-via manipulation.
* Drop the wrapping <table> elements from HTML mail
v3.2 (2013-03-13)
* Use extended interpolation in configuration files, to allow percent signs (%).
* Added .as_string() fallback to email flattening (only used if
`use-smtp = False` and `use-8bit = True`).
* Added sendmail configuration option. Change this if you want to
use an alternative, sendmail-compatible mailer.
v3.1 (2013-02-14)
* Import __url__, __author__, and __email__ in rss2email.error,
which fixes bugs in formatting a number of errors.
v3.0 (2013-02-13)
* Changed project email (rss2email@tremily.us) and homepage
(http://github.com/wking/rss2email).
* Split static configuration parameters into a ConfigParser-read
config file (rss2email.cfg). Data that depends on the feed state
is recorded using JSON (rss2email.json).
* Use the XDG Base Directory Specification for standardized
configuration and data file locations.
* Converted the command line interface to argparse, with some
restructuring along the way.
* Added the r2e.1 man page (based on one from the Debian package).
* Added setup.py and a PyPI page for simpler installation
(http://pypi.python.org/pypi/rss2email).
* Added Message-ID headers to outgoing email.
* Added a test suite.
* Upgraded to Python 3.2 to take advantage of cleaner Unicode
handling and argparse.
* Require Signed-off-by lines in new commit messages, following the
Linux and Git projects.
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