Added messaging feature

db/migrate/20170524181458_create_messages.rb

@@ -0,0 +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.datetime :created_at
+    end
+  end
+end

db/migrate/20170525184355_change_message_to_text.rb

@@ -0,0 +1,5 @@
+class ChangeMessageToText < ActiveRecord::Migration
+  def change
+    rename_column :messages, :message, :text
+  end
+end