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

spec/controllers/admin/users_controller_spec.rb

@@ -307,17 +307,26 @@ describe Admin::UsersController do
         response.should be_forbidden
       end
 
-      it "returns an error if the user has posts" do
-        Fabricate(:post, user: @delete_me)
-        xhr :delete, :destroy, id: @delete_me.id
-        response.should be_forbidden
-      end
+      context "user has post" do
+
+        before do
+          @user = build(:user)
+          @user.stubs(:post_count).returns(1)
+          @user.stubs(:first_post_created_at).returns(Time.zone.now)
+          User.expects(:find_by).with(id: @delete_me.id).returns(@user)
+        end
+
+        it "returns an error" do
+          xhr :delete, :destroy, id: @delete_me.id
+          response.should be_forbidden
+        end
+
+        it "doesn't return an error if delete_posts == true" do
+          UserDestroyer.any_instance.expects(:destroy).with(@user, has_entry('delete_posts' => true)).returns(true)
+          xhr :delete, :destroy, id: @delete_me.id, delete_posts: true
+          response.should be_success
+        end
 
-      it "doesn't return an error if the user has posts and delete_posts == true" do
-        Fabricate(:post, user: @delete_me)
-        UserDestroyer.any_instance.expects(:destroy).with(@delete_me, has_entry('delete_posts' => true)).returns(true)
-        xhr :delete, :destroy, id: @delete_me.id, delete_posts: true
-        response.should be_success
       end
 
       it "deletes the user record" do