Update to 3.7a.
New source URL.
Drop unnecessary spec file elements (BuildRoot, %defattr, etc.).
Reenable XEmacs subpackages.
Fix more files with non-UTF-8 encodings.
Four patches to fix problems encountered with the new version.
Add alsa-lib-devel, dbus-devel, and flac-devel BRs for new APIs.
The obsoletes were needed for now EOL Fedora releases; remove them.
Add %check script.