removed code that dealt with shadow ability from canBeBlocked method. fixes issue 137

src/magic/model/MagicPermanent.java

@@ -731,12 +731,6 @@ public class MagicPermanent implements MagicSource,MagicTarget,Comparable<MagicP
 				return false;
 			}
 		}
-				
-		// Shadow
-		if (MagicAbility.Shadow.hasAbility(flags) &&
-			!player.controlsPermanentWithAbility(MagicAbility.Shadow,game)) {
-			return false;
-		}
 		
 		return true;
 	}