Update dependencies. Fixes Sass error

Gemfile

@@ -2,15 +2,15 @@ source 'https://rubygems.org'
 
 
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
-gem 'rails', '4.1.7'
+gem 'rails'
 # Use sqlite3 as the database for Active Record
 gem 'sqlite3'
 # Use SCSS for stylesheets
-gem 'sass-rails', '~> 4.0.3'
+gem 'sass-rails'
 # Use Uglifier as compressor for JavaScript assets
-gem 'uglifier', '>= 1.3.0'
+gem 'uglifier'
 # Use CoffeeScript for .js.coffee assets and views
-gem 'coffee-rails', '~> 4.0.0'
+gem 'coffee-rails'
 # See https://github.com/sstephenson/execjs#readme for more supported runtimes
 # gem 'therubyracer',  platforms: :ruby
 gem 'slim-rails'

Gemfile.lock

@@ -1,34 +1,43 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    actionmailer (4.1.7)
-      actionpack (= 4.1.7)
-      actionview (= 4.1.7)
+    actionmailer (4.2.1)
+      actionpack (= 4.2.1)
+      actionview (= 4.2.1)
+      activejob (= 4.2.1)
       mail (~> 2.5, >= 2.5.4)
-    actionpack (4.1.7)
-      actionview (= 4.1.7)
-      activesupport (= 4.1.7)
-      rack (~> 1.5.2)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
+    actionpack (4.2.1)
+      actionview (= 4.2.1)
+      activesupport (= 4.2.1)
+      rack (~> 1.6)
       rack-test (~> 0.6.2)
-    actionview (4.1.7)
-      activesupport (= 4.1.7)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
+      rails-html-sanitizer (~> 1.0, >= 1.0.1)
+    actionview (4.2.1)
+      activesupport (= 4.2.1)
       builder (~> 3.1)
       erubis (~> 2.7.0)
-    activemodel (4.1.7)
-      activesupport (= 4.1.7)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
+      rails-html-sanitizer (~> 1.0, >= 1.0.1)
+    activejob (4.2.1)
+      activesupport (= 4.2.1)
+      globalid (>= 0.3.0)
+    activemodel (4.2.1)
+      activesupport (= 4.2.1)
       builder (~> 3.1)
-    activerecord (4.1.7)
-      activemodel (= 4.1.7)
-      activesupport (= 4.1.7)
-      arel (~> 5.0.0)
-    activesupport (4.1.7)
-      i18n (~> 0.6, >= 0.6.9)
+    activerecord (4.2.1)
+      activemodel (= 4.2.1)
+      activesupport (= 4.2.1)
+      arel (~> 6.0)
+    activesupport (4.2.1)
+      i18n (~> 0.7)
       json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
-      thread_safe (~> 0.1)
+      thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
     addressable (2.3.8)
-    arel (5.0.1.20140414130214)
+    arel (6.0.0)
     builder (3.2.2)
     capybara (2.4.4)
       mime-types (>= 1.16)
@@ -37,7 +46,7 @@ GEM
       rack-test (>= 0.5.4)
       xpath (~> 2.0)
     coderay (1.1.0)
-    coffee-rails (4.0.1)
+    coffee-rails (4.1.0)
       coffee-script (>= 2.2.0)
       railties (>= 4.0.0, < 5.0)
     coffee-script (2.4.1)
@@ -56,24 +65,28 @@ GEM
     execjs (2.5.2)
     faraday (0.9.1)
       multipart-post (>= 1.2, < 3)
-    foundation-rails (5.5.0.0)
+    foundation-rails (5.5.1.2)
       railties (>= 3.1.0)
-      sass (>= 3.2.0, < 3.4)
+      sass (>= 3.3.0, < 3.5)
+    globalid (0.3.5)
+      activesupport (>= 4.1.0)
     hashie (3.4.1)
-    hike (1.2.3)
     i18n (0.7.0)
-    jquery-rails (3.1.2)
-      railties (>= 3.0, < 5.0)
+    jquery-rails (4.0.3)
+      rails-dom-testing (~> 1.0)
+      railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
     json (1.8.2)
     launchy (2.4.3)
       addressable (~> 2.3)
+    loofah (2.0.1)
+      nokogiri (>= 1.5.9)
     mail (2.6.3)
       mime-types (>= 1.16, < 3)
     method_source (0.8.2)
-    mime-types (2.4.3)
+    mime-types (2.5)
     mini_portile (0.6.2)
-    minitest (5.5.1)
+    minitest (5.6.0)
     multi_json (1.11.0)
     multipart-post (2.0.0)
     nokogiri (1.6.6.2)
@@ -89,33 +102,43 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
-    rack (1.5.2)
+    rack (1.6.0)
     rack-test (0.6.3)
       rack (>= 1.0)
-    rails (4.1.7)
-      actionmailer (= 4.1.7)
-      actionpack (= 4.1.7)
-      actionview (= 4.1.7)
-      activemodel (= 4.1.7)
-      activerecord (= 4.1.7)
-      activesupport (= 4.1.7)
+    rails (4.2.1)
+      actionmailer (= 4.2.1)
+      actionpack (= 4.2.1)
+      actionview (= 4.2.1)
+      activejob (= 4.2.1)
+      activemodel (= 4.2.1)
+      activerecord (= 4.2.1)
+      activesupport (= 4.2.1)
       bundler (>= 1.3.0, < 2.0)
-      railties (= 4.1.7)
-      sprockets-rails (~> 2.0)
-    railties (4.1.7)
-      actionpack (= 4.1.7)
-      activesupport (= 4.1.7)
+      railties (= 4.2.1)
+      sprockets-rails
+    rails-deprecated_sanitizer (1.0.3)
+      activesupport (>= 4.2.0.alpha)
+    rails-dom-testing (1.0.6)
+      activesupport (>= 4.2.0.beta, < 5.0)
+      nokogiri (~> 1.6.0)
+      rails-deprecated_sanitizer (>= 1.0.1)
+    rails-html-sanitizer (1.0.2)
+      loofah (~> 2.0)
+    railties (4.2.1)
+      actionpack (= 4.2.1)
+      activesupport (= 4.2.1)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rake (10.4.2)
     rdoc (4.2.0)
       json (~> 1.4)
-    sass (3.2.19)
-    sass-rails (4.0.5)
+    sass (3.4.13)
+    sass-rails (5.0.3)
       railties (>= 4.0.0, < 5.0)
-      sass (~> 3.2.2)
-      sprockets (~> 2.8, < 3.0)
-      sprockets-rails (~> 2.0)
+      sass (~> 3.1)
+      sprockets (>= 2.8, < 4.0)
+      sprockets-rails (>= 2.0, < 4.0)
+      tilt (~> 1.1)
     sdoc (0.4.1)
       json (~> 1.7, >= 1.7.7)
       rdoc (~> 4.0)
@@ -130,11 +153,8 @@ GEM
       slim (~> 3.0)
     slop (3.6.0)
     spring (1.3.4)
-    sprockets (2.12.3)
-      hike (~> 1.2)
-      multi_json (~> 1.0)
+    sprockets (3.0.2)
       rack (~> 1.0)
-      tilt (~> 1.1, != 1.3.0)
     sprockets-rails (2.2.4)
       actionpack (>= 3.0)
       activesupport (>= 3.0)
@@ -159,7 +179,7 @@ PLATFORMS
 
 DEPENDENCIES
   capybara
-  coffee-rails (~> 4.0.0)
+  coffee-rails
   elasticsearch
   foundation-rails
   jquery-rails
@@ -167,11 +187,11 @@ DEPENDENCIES
   omniauth
   omniauth-browserid
   pry
-  rails (= 4.1.7)
-  sass-rails (~> 4.0.3)
+  rails
+  sass-rails
   sdoc (~> 0.4.0)
   slim-rails
   spring
   sqlite3
   turbolinks
-  uglifier (>= 1.3.0)
+  uglifier