Redo attributes system, add support for saving and loading, move settings classes around.

data/plugins/dialogue/dialogue.rb

@@ -0,0 +1,16 @@
+
+# Intercepts the first npc action event.
+on :event, :npc_action do |ctx, player, event|
+  if (event.option == 1)
+    # TODO check if player is not in pvp area
+
+  end
+end
+
+def dialogue(name, &block)
+
+end
+
+dialogue :banker_introduction do
+  #
+end