Update sass-rails with newer version of rails.

Gemfile

@@ -152,7 +152,7 @@ gem "rack-attack"
 # Ace editor
 gem 'ace-rails-ap'
 
-gem "sass-rails"
+gem "sass-rails", '~> 4.0.2'
 gem "coffee-rails"
 gem "uglifier"
 gem "therubyracer"

Gemfile.lock

@@ -427,11 +427,12 @@ GEM
     safe_yaml (0.9.7)
     sanitize (2.1.0)
       nokogiri (>= 1.4.4)
-    sass (3.2.12)
-    sass-rails (4.0.1)
+    sass (3.2.19)
+    sass-rails (4.0.3)
       railties (>= 4.0.0, < 5.0)
-      sass (>= 3.1.10)
-      sprockets-rails (~> 2.0.0)
+      sass (~> 3.2.0)
+      sprockets (~> 2.8, <= 2.11.0)
+      sprockets-rails (~> 2.0)
     sdoc (0.3.20)
       json (>= 1.1.3)
       rdoc (~> 3.10)
@@ -478,7 +479,7 @@ GEM
       spring (>= 0.9.1)
     spring-commands-spinach (1.0.0)
       spring (>= 0.9.1)
-    sprockets (2.12.1)
+    sprockets (2.11.0)
       hike (~> 1.2)
       multi_json (~> 1.0)
       rack (~> 1.0)
@@ -636,7 +637,7 @@ DEPENDENCIES
   redis-rails
   rspec-rails
   sanitize (~> 2.0)
-  sass-rails
+  sass-rails (~> 4.0.2)
   sdoc
   seed-fu
   select2-rails