clean up Gemfile and add other initial dependencies

Gemfile

@@ -2,14 +2,9 @@ source 'http://rubygems.org'
 
 gem 'rails', '3.1.0'
 
-# Bundle edge Rails instead:
-# gem 'rails',     :git => 'git://github.com/rails/rails.git'
+gem 'thin'
+gem 'pg'
 
-gem 'sqlite3'
-
-
-# Gems used only for assets and not required
-# in production environments by default.
 group :assets do
   gem 'sass-rails', "  ~> 3.1.0"
   gem 'coffee-rails', "~> 3.1.0"
@@ -18,16 +13,10 @@ end
 
 gem 'jquery-rails'
 
-# Use unicorn as the web server
-# gem 'unicorn'
-
-# Deploy with Capistrano
-# gem 'capistrano'
-
-# To use debugger
-# gem 'ruby-debug19', :require => 'ruby-debug'
-
 group :test do
-  # Pretty printed test output
   gem 'turn', :require => false
 end
+
+group :development do
+  gem 'therubyracer'
+end

Gemfile.lock

@@ -41,20 +41,24 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.1.2)
+    daemons (1.1.4)
     erubis (2.7.0)
+    eventmachine (0.12.10)
     execjs (1.2.8)
       multi_json (~> 1.0)
     hike (1.2.1)
     i18n (0.6.0)
     jquery-rails (1.0.14)
       railties (~> 3.0)
       thor (~> 0.14)
+    libv8 (3.3.10.2)
     mail (2.3.0)
       i18n (>= 0.4.0)
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
     mime-types (1.16)
     multi_json (1.0.3)
+    pg (0.11.0)
     polyglot (0.3.2)
     rack (1.3.3)
     rack-cache (1.0.3)
@@ -93,7 +97,12 @@ GEM
       hike (~> 1.2)
       rack (~> 1.0)
       tilt (~> 1.1, != 1.3.0)
-    sqlite3 (1.3.4)
+    therubyracer (0.9.4)
+      libv8 (~> 3.3.10)
+    thin (1.2.11)
+      daemons (>= 1.0.9)
+      eventmachine (>= 0.12.6)
+      rack (>= 1.0.0)
     thor (0.14.6)
     tilt (1.3.3)
     treetop (1.4.10)
@@ -112,8 +121,10 @@ PLATFORMS
 DEPENDENCIES
   coffee-rails (~> 3.1.0)
   jquery-rails
+  pg
   rails (= 3.1.0)
   sass-rails (~> 3.1.0)
-  sqlite3
+  therubyracer
+  thin
   turn
   uglifier