[mutter/wayland] Update .gitignore

[Jasper St. Pierre <jstpierre src gnome org>]

commit 0cdf3bd38329e7d2109c9df0300dfd171f1c0acd
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Tue Mar 18 13:03:55 2014 -0400

    Update .gitignore

 .gitignore |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/.gitignore b/.gitignore
index ba75840..eafa0d7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -101,3 +101,10 @@ doc/reference/meta-undocumented.txt
 doc/reference/meta-unused.txt
 doc/reference/meta-docs.sgml
 doc/reference/meta.types
+gtk-doc.m4
+intltool.m4
+libtool.m4
+ltoptions.m4
+ltsugar.m4
+ltversion.m4
+lt~obsolete.m4