Unclaim command

PlotSquared/src/main/java/com/intellectualcrafters/plot/commands/Command.java

@@ -36,6 +36,10 @@ public enum Command {
     // (Rating system) (ratings can be stored as the average, and number of
     // ratings)
     // - /plot rate <number out of 10>
+    /**
+     * 
+     */
+    UNCLAIM("unclaim"),
     /**
      *
      */