Add a changelog entry.
Add a changelog entry.

Ignore-this: a6a0e5d89733ebcb3a78d8fbf98a8e15

darcs-hash:20120427151519-2bae8-c5e72ee8fed54d1e3f39a85be3e222b021527964.gz

the-real-blackh/hexpat,the-real-blackh/hexpat,the-real-blackh/hexpat