Update ruby and rails.

Gemfile

@@ -1,6 +1,6 @@
 source "https://rubygems.org"
 
-ruby "2.1.4"
+ruby "2.2.0"
 gem "rails"
 gem "sqlite3"
 gem "pry-rails"

Gemfile.lock

@@ -1,47 +1,63 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    actionmailer (4.1.7)
-      actionpack (= 4.1.7)
-      actionview (= 4.1.7)
+    actionmailer (4.2.0)
+      actionpack (= 4.2.0)
+      actionview (= 4.2.0)
+      activejob (= 4.2.0)
       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 (4.2.0)
+      actionview (= 4.2.0)
+      activesupport (= 4.2.0)
+      rack (~> 1.6.0)
       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 (4.2.0)
+      activesupport (= 4.2.0)
       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 (4.2.0)
+      activesupport (= 4.2.0)
+      globalid (>= 0.3.0)
+    activemodel (4.2.0)
+      activesupport (= 4.2.0)
       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 (4.2.0)
+      activemodel (= 4.2.0)
+      activesupport (= 4.2.0)
+      arel (~> 6.0)
+    activesupport (4.2.0)
+      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)
-    arel (5.0.1.20140414130214)
+    arel (6.0.0)
     builder (3.2.2)
     coderay (1.1.0)
     database_cleaner (1.3.0)
     diff-lcs (1.2.5)
     erubis (2.7.0)
+    globalid (0.3.3)
+      activesupport (>= 4.1.0)
     hike (1.2.3)
-    i18n (0.6.11)
-    json (1.8.1)
+    i18n (0.7.0)
+    json (1.8.2)
+    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)
-    minitest (5.4.2)
+    mini_portile (0.6.2)
+    minitest (5.5.1)
     multi_json (1.10.1)
+    nokogiri (1.6.6.2)
+      mini_portile (~> 0.6.0)
     pry (0.10.1)
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
@@ -51,25 +67,34 @@ GEM
       yard (~> 0.8)
     pry-rails (0.3.2)
       pry (>= 0.9.10)
-    rack (1.5.2)
-    rack-test (0.6.2)
+    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 (4.2.0)
+      actionmailer (= 4.2.0)
+      actionpack (= 4.2.0)
+      actionview (= 4.2.0)
+      activejob (= 4.2.0)
+      activemodel (= 4.2.0)
+      activerecord (= 4.2.0)
+      activesupport (= 4.2.0)
       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 (= 4.2.0)
+      sprockets-rails
+    rails-deprecated_sanitizer (1.0.3)
+      activesupport (>= 4.2.0.alpha)
+    rails-dom-testing (1.0.5)
+      activesupport (>= 4.2.0.beta, < 5.0)
+      nokogiri (~> 1.6.0)
+      rails-deprecated_sanitizer (>= 1.0.1)
+    rails-html-sanitizer (1.0.1)
+      loofah (~> 2.0)
+    railties (4.2.0)
+      actionpack (= 4.2.0)
+      activesupport (= 4.2.0)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rake (10.3.2)
+    rake (10.4.2)
     rspec-core (3.1.7)
       rspec-support (~> 3.1.0)
     rspec-expectations (3.1.2)
@@ -92,7 +117,7 @@ GEM
       multi_json (~> 1.0)
       rack (~> 1.0)
       tilt (~> 1.1, != 1.3.0)
-    sprockets-rails (2.2.0)
+    sprockets-rails (2.2.4)
       actionpack (>= 3.0)
       activesupport (>= 3.0)
       sprockets (>= 2.8, < 4.0)

config/environments/production.rb

@@ -20,7 +20,7 @@
   # config.action_dispatch.rack_cache = true
 
   # Disable Rails's static asset server (Apache or nginx will already do this).
-  config.serve_static_assets = false
+  config.serve_static_files = false
 
   # Compress JavaScripts and CSS.
   config.assets.js_compressor = :uglifier

config/environments/test.rb

@@ -13,7 +13,7 @@
   config.eager_load = false
 
   # Configure static asset server for tests with Cache-Control for performance.
-  config.serve_static_assets  = true
+  config.serve_static_files  = true
   config.static_cache_control = 'public, max-age=3600'
 
   # Show full error reports and disable caching.