Add concurrecy with unicorn

Gemfile

@@ -17,6 +17,10 @@ group :development, :production do
   gem 'pg'
 end
 
+group :production do
+  gem 'unicorn'
+end
+
 group :test do
   gem 'ZenTest'
   gem 'simplecov'

Gemfile.lock

@@ -57,6 +57,7 @@ GEM
     i18n (0.6.0)
     jruby-openssl (0.7.4)
       bouncy-castle-java
+    kgio (2.4.2)
     libv8 (3.3.10.2)
     mail (2.3.0)
       i18n (>= 0.4.0)
@@ -114,10 +115,13 @@ GEM
     uglifier (0.5.4)
       execjs (>= 0.3.0)
       multi_json (>= 1.0.2)
+    unicorn (3.7.0)
+      kgio (~> 2.3)
+      rack
     warden (1.0.4)
       rack (>= 1.0)
     webmock (1.6.4)
-      addressable (> 2.2.5, ~> 2.2)
+      addressable (~> 2.2, > 2.2.5)
       crack (>= 0.1.7)
 
 PLATFORMS
@@ -139,4 +143,5 @@ DEPENDENCIES
   therubyrhino
   turn
   uglifier
+  unicorn
   webmock

Procfile

@@ -0,0 +1 @@
+web: bundle exec unicorn -p $PORT -c ./config/unicorn.rb

config/unicorn.rb

@@ -0,0 +1,3 @@
+worker_processes 2
+timeout 60
+preload_app true