FEATURE: flag dispositions normalization

All flags should end up in one of the three dispositions
  - Agree
  - Disagree
  - Defer

In the administration area, the *active* flags section displays 4 buttons
  - Agree (hide post + send PM)
  - Disagree
  - Defer
  - Delete

Clicking "Delete" will open a modal that offer to
  - Delete Post & Defer Flags
  - Delete Post & Agree with Flags
  - Delete Spammer (if available)

When the flag has a list associated, the list will now display 1
response and 1 reply and a "show more..." link if there are more in the
conversation. Replying to the conversation will NOT give a disposition.
Moderators must click the buttons that does that.

If someone clicks one buttons, this will add a default moderator message
from that moderator saying what happened.

The *old* flags section now displays the proper dispositions and is
super duper fast (no more N+9999 queries).

FIX: the old list includes deleted topics
FIX: the lists now properly display the topic states (deleted, closed,
archived, hidden, PM)
FIX: flagging a topic that you've already flagged the first post

app/assets/javascripts/admin/views/admin_flags_view.js

@@ -1,13 +1,21 @@
 Discourse.AdminFlagsView = Discourse.View.extend(Discourse.LoadMore, {
   loading: false,
   eyelineSelector: '.admin-flags tbody tr',
-  loadMore: function() {
-    var view = this;
-    if(this.get("loading") || this.get("model.allLoaded")) { return; }
-    this.set("loading", true);
-    this.get("controller").loadMore().then(function(){
-      view.set("loading", false);
-    });
+
+  actions: {
+
+    loadMore: function() {
+      var self = this;
+
+      if (this.get("loading") || this.get("model.allLoaded")) { return; }
+
+      this.set("loading", true);
+
+      this.get("controller").loadMore().then(function () {
+        self.set("loading", false);
+      });
+    }
+
   }
 
 });

app/assets/javascripts/admin/views/modals/admin_delete_flag_view.js

@@ -0,0 +1,12 @@
+/**
+  A modal view for deleting a flag.
+
+  @class AdminDeleteFlagView
+  @extends Discourse.ModalBodyView
+  @namespace Discourse
+  @module Discourse
+**/
+Discourse.AdminDeleteFlagView = Discourse.ModalBodyView.extend({
+  templateName: 'admin/templates/modal/admin_delete_flag',
+  title: I18n.t('admin.flags.delete_flag_modal_title')
+});