[samba4] Add updated gitignore.

[asn]

commit d7e6342caae21073e9d7fc597dc34d44ff88f61f
Author: Andreas Schneider <asn at cryptomilk.org>
Date:   Tue Apr 3 17:25:22 2012 +0200

    Add updated gitignore.

 .gitignore |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/.gitignore b/.gitignore
index 462e82c..3eb8912 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@ samba-4.0.0alpha11.tar.gz
 /samba-4.0.0alpha15-GIT-29f850a.tar.gz
 /samba-4.0.0alpha15-GIT-3560db3.tar.gz
 /samba-4.0.0alpha15-GIT-a6a722b.tar.gz
+/samba-4.0.0alpha18.tar.bz2