wrapped ruleset (#30)

* wrapped ruleset

* resurrect like brad suggested

* introduce mode to binary

* go fmt

* address edge crossing collision and eating bugs

* Update board_state.go

* removed binary

* rename variable

cli/commands/play.go

@@ -214,6 +214,10 @@ func getRuleset(seed int64, gameTurn int32, snakes []Battlesnake) rules.Ruleset
 		ruleset = &rules.SoloRuleset{
 			StandardRuleset: standard,
 		}
+	case "wrapped":
+		ruleset = &rules.WrappedRuleset{
+			StandardRuleset: standard,
+		}
 	case "constrictor":
 		ruleset = &rules.ConstrictorRuleset{
 			StandardRuleset: standard,