It blows things up by a factor of six or so, so it's worth giving
people a heads up. It won't effect e.g. Debian, that already builds
with -g and then strips.
Add support for `notmuch_query_add_tag_exclude`
+Build System
+------------
+
+The notmuch binaries and libraries are now build with debugging symbols
+by default. Users concerned with disk space should change the
+defaults when configuring or use the strip(1) command.
+
Notmuch 0.18.1 (2014-06-25)
===========================