thread reply emails! also a few mail bugfixes

app/mailers/redstoner_mailer.rb

@@ -1,5 +1,6 @@
 class RedstonerMailer < ActionMailer::Base
 
+  add_template_helper(ApplicationHelper)
   default from: "info@redstoner.com"
   default reply_to: "redstonerserver+website@gmail.com"
 
@@ -14,4 +15,10 @@ class RedstonerMailer < ActionMailer::Base
     @mcpw = uses_mc_pass
     mail(to: "redstonerserver@gmail.com", subject: "#{@user.name} registered on Redstoner.com", from: "info@redstoner.com", reply_to: "redstonerserver+website@gmail.com")
   end
+
+  def thread_reply_mail(user, reply)
+    @user  = user
+    @reply = reply
+    mail(to: @user.email, subject: "#{reply.author.name} replied to '#{reply.thread.title}' on Redstoner", from: "info@redstoner", reply_to: "redstonerserver+website@gmail")
+  end
 end