Add Theo Spears to contributors.txt
@@ -129,3 +129,4 @@ Jun Sakai, 2013/01/16
Vlad Frolov, 2013/01/23
Milen Pavlov, 2013/03/08
Pär Wieslander, 2013/03/20
+Theo Spears, 2013/03/28
Ask Solem Hoel