CONTRIBUTORS in activemerchant-1.41.0 vs CONTRIBUTORS in activemerchant-1.42.0

@@ -422,5 +422,17 @@
 * Michaël Hoste (MichaelHoste)
 
 Conekta (October 2013)
 
 * Leo Fischer (leofischer)
+
+App55 (November 2013)
+
+* (ianbutler55)
+
+Swipe Checkout (November 2013)
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+* (matt-optimizerhq)
+
+Raven PacNet (November 2013)
+
+* Luis Lopez (llopez)