PowerAction parsing work.

src/engine/wpak/PowerActionParser.java

@@ -110,7 +110,8 @@ public class PowerActionParser {
                         powerActionEntry.effects.add(effectDescription);
                     }
                     break;
-                case "Teleport": // No arguments
+                case "Teleport":
+                case "TreeChoke":// No arguments
                     break;
                 default:
                     Logger.error("Unhandled type " + powerActionEntry.action_type + " for Pow4erAction: " + powerActionEntry.action_id);