added rubyracer gem

Gemfile

@@ -11,7 +11,7 @@ end
 group :assets do
   gem "sass-rails"
   gem "uglifier", ">= 1.0.3"
-  # gem "therubyracer"
+  gem "therubyracer"
 end
 
 gem "rails", "3.2.12"

Gemfile.lock

@@ -83,6 +83,7 @@ GEM
     i18n (0.6.4)
     journey (1.0.4)
     json (1.7.7)
+    libv8 (3.11.8.13)
     mail (2.4.4)
       i18n (>= 0.4.0)
       mime-types (~> 1.16)
@@ -133,6 +134,7 @@ GEM
     rake (10.0.4)
     rdoc (3.12.2)
       json (~> 1.4)
+    ref (1.0.2)
     rmagick (2.13.2)
     ruby-prof (0.13.0)
     sass (3.2.7)
@@ -161,6 +163,9 @@ GEM
       rack (~> 1.0)
       tilt (~> 1.1, != 1.3.0)
     term-ansicolor (1.1.4)
+    therubyracer (0.11.3)
+      libv8 (~> 3.11.8.12)
+      ref
     thor (0.18.1)
     tilt (1.3.6)
     treetop (1.4.12)
@@ -210,5 +215,6 @@ DEPENDENCIES
   simple_form
   simplecov
   term-ansicolor
+  therubyracer
   uglifier (>= 1.0.3)
   whenever