Adds newline at end of CONTRIBUTORS.txt

CONTRIBUTORS.txt

@@ -119,4 +119,4 @@ Mitar, 2012/07/28
 Adam DePue, 2012/08/22
 Thomas Meson, 2012/08/28
 Daniel Lundin, 2012/08/30
-Alexey Zatelepin, 2012/09/18
+Alexey Zatelepin, 2012/09/18