title: action mailer gem and tlsmail gem not working in heroku after GIT PUSH HEROKU
body: <p>I'm using heroku as my host..It was working fine.</p>
  
  <p>Then I installed action_mailer_tls and tlsmail.
  Then I comitted it and pushed it heroku..</p>
  
  <p>After that I got error in myapp.heroku.com.
  The error is </p>
  
  <pre><code>/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require': no such file to load -- smtp_tls (MissingSourceFile)
   from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
   from /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active_support/dependencies.rb:158:in `require'
   from /disk1/home/slugs/154378_e47562d_b59c/mnt/config/initializers/smtp_gmail.rb:3
   from /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active_support/dependencies.rb:147:in `load_without_new_constant_marking'
   from /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active_support/dependencies.rb:147:in `load'
   from /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.3/lib/initializer.rb:622:in `load_application_initializers'
   from /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.3/lib/initializer.rb:621:in `each'
   from /usr/local/lib/ruby/gems/1.8/gems/rails-2.3.3/lib/initializer.rb:621:in `load_application_initializers'
  ... 19 levels...
   from /usr/local/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/builder.rb:29:in `instance_eval'
   from /usr/local/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/builder.rb:29:in `initialize'
   from /home/heroku_rack/heroku.ru:1:in `new'
   from /home/heroku_rack/heroku.ru:1
  </code></pre>
  
  <p>Do I need to push the gems..If so I tried </p>
  
  <pre><code>git add .gems
  </code></pre>
  
  <p>It also gives fatal error.</p>
  
  <p>any suggestion would be greatly appreciated.</p>