[gobject-introspection] Update .gitignore

[Johan Dahlin <johan src gnome org>]

commit 8b2c04a0d5a2a0b4f3f42f03c66a623f7e1afc15
Author: Johan Dahlin <johan gnome org>
Date:   Mon May 31 17:45:48 2010 -0300

    Update .gitignore

 .gitignore |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/.gitignore b/.gitignore
index 4cd7259..561275e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -47,6 +47,7 @@ docs/reference/gi.signals
 docs/reference/html
 docs/reference/xml
 docs/reference/tmpl
+docs/reference/*.bak
 gir/Everything-1.0.gir
 gir/Everything-1.0.typelib
 gir/GIMarshallingTests-1.0.gir