[mutter/wayland] Update .gitignore

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

commit 216ff7ebe5577a0b27cb209099218149df489d4a
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Mon Mar 31 23:47:40 2014 -0400

    Update .gitignore
    
    It seems the new automake likes to litter these files all around.

 .gitignore |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/.gitignore b/.gitignore
index efe1746..29da1c7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -108,3 +108,4 @@ ltoptions.m4
 ltsugar.m4
 ltversion.m4
 lt~obsolete.m4
+.dirstamp