[3.0] 0ff7bb2 Update .gitignore

[Tollef Fog Heen]

commit 0ff7bb23aee5aa249dc6e266f07f81e61e201f27
Author: Rogier 'DocWilco' Mulhuijzen <github at bsdchicks.com>
Date:   Sat Jan 14 13:36:10 2012 +0100

    Update .gitignore
    
    I work with NetBeans, and it insists on this being present.

diff --git a/.gitignore b/.gitignore
index f35e990..21fe76b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -84,3 +84,6 @@ TAGS
 /doc/*.html
 /doc/sphinx/=build/
 /doc/sphinx/conf.py
+
+# NetBeans insists on this
+/nbproject/private/