- Add libexpat-devel BuildRequires: new dependency for the RSSyl
plugin, which was completely rewritten in 3.11.0.

- Pass --enable-appdata to %configure.

- New build requirement: intltool.

- Update to version 3.11.0 (boo#903276):
+ SSLv3 server connections are now disabled by default, in
response to the POODLE vulnerability (CVE-2014-3566).
+ Several PGP/Core plugin improvements:
- Indicate when a key has been revoked or has expired when
displaying signature status.
- When displaying the full information, show the Validity, and
the Owner Trust level. Also indicate expired and revoked
keys, and revoked UIDs.
- The "Content-Disposition: attachment" flag in PGP/MIME signed
messages has been removed. It was confusing for cetain MUAs.
+ A new version of the RSSyl plugin, completely redesigned and
rewritten.
+ The results of TAB address completion in the Compose window
have improved ordering.
+ Due to popular demand, use of the Up key in the message body in
the Compose window stops at the top of the message body and
does not continue up to the header fields. This reverts the
behaviour introduced in version 3.10.0.
+ In the Compose window, when navigating with the arrow keys,
selecting, and thus modifying, the Account selector is now
prevented.
+ In the Compose window, a mnemonic (s) has been added to the