bubger 1.1

This release adds the ability to define searches to generate pages
and feeds in addition to "index", listing subsets of threads. This
replaces the previous function of the -S flag.

Atom feeds now use "Atom Threading Extensions" to express replies.
Feeds for index/search pages are now limited to 20 entries by
default, configurable with the -A flag.

The -t flag has been removed, since it was impossible to use
correctly. Decoding of adjacent encoded-words in headers has been
fixed.

The variables generated by configure and used by the Makefile have
changed. Re-run ./configure before make, if necessary.