Add dummy ChangeLog file, so that automake is happy.

fbf7f175 · Tiago Peixoto · f05f9a9c · fbf7f175
Commit fbf7f175 authored Sep 28, 2007 by Tiago Peixoto
--- a/ChangeLog
+++ b/ChangeLog
+To see the full detailed changelog, see the git repository at git://git.forked.de/graph-tool or  http://git.forked.de/?p=graph-tool