Bump version to 0.9.2

A *real* release this time, with NEWS, ChangeLog, etc.
diff --git a/AUTHORS b/AUTHORS
index e69de29..c611d7d 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -0,0 +1,8 @@
+Behdad Esfahbod
+Simon Hausmann
+Martin Hosken
+Jonathan Kew
+Lars Knoll
+Werner Lemberg
+Owen Taylor
+David Turner