diff --git a/Gemfile b/Gemfile
index 12fc57f..97401a0 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,5 +1,7 @@
 source 'https://rubygems.org'
 
+gem 'rails', '~> 4.2.7.1'
+
 group :development, :test do
   gem 'rspec-rails'
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 1c83f1e..1e38489 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,48 +1,86 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    actionpack (5.0.1)
-      actionview (= 5.0.1)
-      activesupport (= 5.0.1)
-      rack (~> 2.0)
-      rack-test (~> 0.6.3)
-      rails-dom-testing (~> 2.0)
+    actionmailer (4.2.7.1)
+      actionpack (= 4.2.7.1)
+      actionview (= 4.2.7.1)
+      activejob (= 4.2.7.1)
+      mail (~> 2.5, >= 2.5.4)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
+    actionpack (4.2.7.1)
+      actionview (= 4.2.7.1)
+      activesupport (= 4.2.7.1)
+      rack (~> 1.6)
+      rack-test (~> 0.6.2)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.0.1)
-      activesupport (= 5.0.1)
+    actionview (4.2.7.1)
+      activesupport (= 4.2.7.1)
       builder (~> 3.1)
       erubis (~> 2.7.0)
-      rails-dom-testing (~> 2.0)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    activesupport (5.0.1)
-      concurrent-ruby (~> 1.0, >= 1.0.2)
+    activejob (4.2.7.1)
+      activesupport (= 4.2.7.1)
+      globalid (>= 0.3.0)
+    activemodel (4.2.7.1)
+      activesupport (= 4.2.7.1)
+      builder (~> 3.1)
+    activerecord (4.2.7.1)
+      activemodel (= 4.2.7.1)
+      activesupport (= 4.2.7.1)
+      arel (~> 6.0)
+    activesupport (4.2.7.1)
       i18n (~> 0.7)
+      json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
+      thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
+    arel (6.0.4)
     builder (3.2.3)
     concurrent-ruby (1.0.4)
     diff-lcs (1.3)
     erubis (2.7.0)
+    globalid (0.3.7)
+      activesupport (>= 4.1.0)
     i18n (0.8.0)
+    json (1.8.6)
     loofah (2.0.3)
       nokogiri (>= 1.5.9)
-    method_source (0.8.2)
+    mail (2.6.4)
+      mime-types (>= 1.16, < 4)
+    mime-types (3.1)
+      mime-types-data (~> 3.2015)
+    mime-types-data (3.2016.0521)
     mini_portile2 (2.1.0)
     minitest (5.10.1)
     nokogiri (1.7.0.1)
       mini_portile2 (~> 2.1.0)
-    rack (2.0.1)
+    rack (1.6.5)
     rack-test (0.6.3)
       rack (>= 1.0)
-    rails-dom-testing (2.0.2)
-      activesupport (>= 4.2.0, < 6.0)
+    rails (4.2.7.1)
+      actionmailer (= 4.2.7.1)
+      actionpack (= 4.2.7.1)
+      actionview (= 4.2.7.1)
+      activejob (= 4.2.7.1)
+      activemodel (= 4.2.7.1)
+      activerecord (= 4.2.7.1)
+      activesupport (= 4.2.7.1)
+      bundler (>= 1.3.0, < 2.0)
+      railties (= 4.2.7.1)
+      sprockets-rails
+    rails-deprecated_sanitizer (1.0.3)
+      activesupport (>= 4.2.0.alpha)
+    rails-dom-testing (1.0.8)
+      activesupport (>= 4.2.0.beta, < 5.0)
       nokogiri (~> 1.6)
+      rails-deprecated_sanitizer (>= 1.0.1)
     rails-html-sanitizer (1.0.3)
       loofah (~> 2.0)
-    railties (5.0.1)
-      actionpack (= 5.0.1)
-      activesupport (= 5.0.1)
-      method_source
+    railties (4.2.7.1)
+      actionpack (= 4.2.7.1)
+      activesupport (= 4.2.7.1)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rake (12.0.0)
@@ -63,6 +101,13 @@ GEM
       rspec-mocks (~> 3.5.0)
       rspec-support (~> 3.5.0)
     rspec-support (3.5.0)
+    sprockets (3.7.1)
+      concurrent-ruby (~> 1.0)
+      rack (> 1, < 3)
+    sprockets-rails (3.2.0)
+      actionpack (>= 4.0)
+      activesupport (>= 4.0)
+      sprockets (>= 3.0.0)
     thor (0.19.4)
     thread_safe (0.3.5)
     tzinfo (1.2.2)
@@ -72,6 +117,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
+  rails (~> 4.2.7.1)
   rspec-rails
 
 BUNDLED WITH