Merge honza's contrib.

CONTRIBUTORS.txt

@@ -135,6 +135,8 @@ Contributors
 
 - David Birdsong, 2013-04-11
 
+- Honza Pokorny, 2013-07-23
+
 - Thúlio Costa, 2013-10-31
 
 - Gary M. Josack, 2013-11-12