Made messages more thread-like (replies, editing, etc.)

db/migrate/20170524181458_create_messages.rb

@@ -1,10 +1,11 @@
 class CreateMessages < ActiveRecord::Migration
   def change
     create_table :messages do |t|
-
       t.text :message
       t.references :user_sender
       t.references :user_target
+      t.references :user_editor
+      t.references :user_hidden
       t.datetime :created_at
     end
   end

db/migrate/20170613021450_create_messagereplies.rb

@@ -0,0 +1,13 @@
+class CreateMessagereplies < ActiveRecord::Migration
+  def change
+    create_table :messagereplies do |t|
+      t.text       :text
+
+      t.references :user_author
+      t.references :user_editor
+      t.references :message
+
+      t.timestamps null: true
+    end
+  end
+end

db/migrate/20170613144233_add_user_editor_to_messages.rb

@@ -0,0 +1,5 @@
+class AddUserEditorToMessages < ActiveRecord::Migration
+  def change
+    add_reference :messages, :user_editor
+  end
+end