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/controllers/admin-flags.js.es6

@@ -8,36 +8,34 @@
 **/
 export default Ember.ArrayController.extend({
 
+  adminOldFlagsView: Em.computed.equal('query', 'old'),
+  adminActiveFlagsView: Em.computed.equal('query', 'active'),
+
   actions: {
-    /**
-      Clear all flags on a post
 
-      @method clearFlags
-      @param {Discourse.FlaggedPost} item The post whose flags we want to clear
-    **/
-    disagreeFlags: function(item) {
-      var adminFlagsController = this;
-      item.disagreeFlags().then(function() {
-        adminFlagsController.removeObject(item);
-      }, function() {
+    agreeFlags: function (flaggedPost) {
+      var self = this;
+      flaggedPost.agreeFlags().then(function () {
+        self.removeObject(flaggedPost);
+      }, function () {
         bootbox.alert(I18n.t("admin.flags.error"));
       });
     },
 
-    agreeFlags: function(item) {
-      var adminFlagsController = this;
-      item.agreeFlags().then(function() {
-        adminFlagsController.removeObject(item);
-      }, function() {
+    disagreeFlags: function (flaggedPost) {
+      var self = this;
+      flaggedPost.disagreeFlags().then(function () {
+        self.removeObject(flaggedPost);
+      }, function () {
         bootbox.alert(I18n.t("admin.flags.error"));
       });
     },
 
-    deferFlags: function(item) {
-      var adminFlagsController = this;
-      item.deferFlags().then(function() {
-        adminFlagsController.removeObject(item);
-      }, function() {
+    deferFlags: function (flaggedPost) {
+      var self = this;
+      flaggedPost.deferFlags().then(function () {
+        self.removeObject(flaggedPost);
+      }, function () {
         bootbox.alert(I18n.t("admin.flags.error"));
       });
     },
@@ -45,47 +43,8 @@ export default Ember.ArrayController.extend({
     doneTopicFlags: function(item) {
       this.send('disagreeFlags', item);
     },
-
-    /**
-      Deletes a post
-
-      @method deletePost
-      @param {Discourse.FlaggedPost} post The post to delete
-    **/
-    deletePost: function(post) {
-      var adminFlagsController = this;
-      post.deletePost().then(function() {
-        adminFlagsController.removeObject(post);
-      }, function() {
-        bootbox.alert(I18n.t("admin.flags.error"));
-      });
-    },
-
-    /**
-      Deletes a user and all posts and topics created by that user.
-
-      @method deleteSpammer
-      @param {Discourse.FlaggedPost} item The post to delete
-    **/
-    deleteSpammer: function(item) {
-      item.get('user').deleteAsSpammer(function() { window.location.reload(); });
-    }
   },
 
-  /**
-    Are we viewing the 'old' view?
-
-    @property adminOldFlagsView
-  **/
-  adminOldFlagsView: Em.computed.equal('query', 'old'),
-
-  /**
-    Are we viewing the 'active' view?
-
-    @property adminActiveFlagsView
-  **/
-  adminActiveFlagsView: Em.computed.equal('query', 'active'),
-
   loadMore: function(){
     var flags = this.get('model');
     return Discourse.FlaggedPost.findAll(this.get('query'),flags.length+1).then(function(data){

app/assets/javascripts/admin/controllers/admin_delete_flag_controller.js

@@ -0,0 +1,52 @@
+/**
+  The modal for deleting a flag.
+
+  @class AdminDeleteFlagController
+  @extends Discourse.Controller
+  @namespace Discourse
+  @uses Discourse.ModalFunctionality
+  @module Discourse
+**/
+Discourse.AdminDeleteFlagController = Discourse.ObjectController.extend(Discourse.ModalFunctionality, {
+
+  needs: ["adminFlags"],
+
+  actions: {
+
+    deletePostDeferFlag: function () {
+      var adminFlagController = this.get("controllers.adminFlags");
+      var post = this.get("content");
+      var self = this;
+
+      return post.deferFlags(true).then(function () {
+        adminFlagController.removeObject(post);
+        self.send("closeModal");
+      }, function () {
+        bootbox.alert(I18n.t("admin.flags.error"));
+      });
+    },
+
+    deletePostAgreeFlag: function () {
+      var adminFlagController = this.get("controllers.adminFlags");
+      var post = this.get("content");
+      var self = this;
+
+      return post.agreeFlags(true).then(function () {
+        adminFlagController.removeObject(post);
+        self.send("closeModal");
+      }, function () {
+        bootbox.alert(I18n.t("admin.flags.error"));
+      });
+    },
+
+    /**
+      Deletes a user and all posts and topics created by that user.
+
+      @method deleteSpammer
+    **/
+    deleteSpammer: function () {
+      this.get("content.user").deleteAsSpammer(function() { window.location.reload(); });
+    }
+  }
+
+});