Add NO_FLOW (-f) region flag for preventing liquid flow

Author: net

src/main/java/org/mctourney/autoreferee/regions/AutoRefRegion.java

@@ -37,10 +37,11 @@ public static enum Flag
 		NO_EXPLOSIONS      (1 << 3, false, 'e', "noexplosion"),
 		NO_ACCESS          (1 << 4, false, 'a', "noaccess"),
 		NO_TELEPORT        (1 << 5, false, 't', "noteleport"),
-		SPAWNERS_ONLY      (1 << 6, false, 'w', "spawnersonly");
+		SPAWNERS_ONLY      (1 << 6, false, 'w', "spawnersonly"),
+		NO_FLOW            (1 << 7, true,  'f', "noflow");
 
 		// generated from above values
-		public static final String OPTIONS = "abenstw";
+		public static final String OPTIONS = "abenstwf";
 
 		private int value;
 		private String name;