diff --git a/Gemfile.lock b/Gemfile.lock
index 17276b0..856a52f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,89 +1,105 @@
 PATH
   remote: .
   specs:
-    singleton-rails (0.0.1)
-      rails (~> 4.1.0.beta1)
+    singleton-rails (0.0.2.1)
+      rails (>= 4.0.6, < 5.0.0)
 
 GEM
   remote: https://rubygems.org/
   specs:
-    actionmailer (4.1.0.beta1)
-      actionpack (= 4.1.0.beta1)
-      actionview (= 4.1.0.beta1)
-      mail (~> 2.5.4)
-    actionpack (4.1.0.beta1)
-      actionview (= 4.1.0.beta1)
-      activesupport (= 4.1.0.beta1)
-      rack (~> 1.5.2)
+    actionmailer (4.2.11.3)
+      actionpack (= 4.2.11.3)
+      actionview (= 4.2.11.3)
+      activejob (= 4.2.11.3)
+      mail (~> 2.5, >= 2.5.4)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
+    actionpack (4.2.11.3)
+      actionview (= 4.2.11.3)
+      activesupport (= 4.2.11.3)
+      rack (~> 1.6)
       rack-test (~> 0.6.2)
-    actionview (4.1.0.beta1)
-      activesupport (= 4.1.0.beta1)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
+      rails-html-sanitizer (~> 1.0, >= 1.0.2)
+    actionview (4.2.11.3)
+      activesupport (= 4.2.11.3)
       builder (~> 3.1)
       erubis (~> 2.7.0)
-    activemodel (4.1.0.beta1)
-      activesupport (= 4.1.0.beta1)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
+      rails-html-sanitizer (~> 1.0, >= 1.0.3)
+    activejob (4.2.11.3)
+      activesupport (= 4.2.11.3)
+      globalid (>= 0.3.0)
+    activemodel (4.2.11.3)
+      activesupport (= 4.2.11.3)
       builder (~> 3.1)
-    activerecord (4.1.0.beta1)
-      activemodel (= 4.1.0.beta1)
-      activesupport (= 4.1.0.beta1)
-      arel (~> 5.0.0)
-    activesupport (4.1.0.beta1)
-      i18n (~> 0.6, >= 0.6.9)
-      json (~> 1.7, >= 1.7.7)
+    activerecord (4.2.11.3)
+      activemodel (= 4.2.11.3)
+      activesupport (= 4.2.11.3)
+      arel (~> 6.0)
+    activesupport (4.2.11.3)
+      i18n (~> 0.7)
       minitest (~> 5.1)
-      thread_safe (~> 0.1)
+      thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    arel (5.0.0)
-    atomic (1.1.14)
-    builder (3.2.2)
+    arel (6.0.4)
+    builder (3.2.4)
+    concurrent-ruby (1.1.8)
+    crass (1.0.6)
     erubis (2.7.0)
-    hike (1.2.3)
-    i18n (0.6.9)
-    json (1.8.1)
-    mail (2.5.4)
-      mime-types (~> 1.16)
-      treetop (~> 1.4.8)
-    mime-types (1.25.1)
-    minitest (5.2.2)
-    multi_json (1.8.4)
-    polyglot (0.3.3)
-    rack (1.5.2)
-    rack-test (0.6.2)
+    globalid (0.4.2)
+      activesupport (>= 4.2.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
+    loofah (2.9.1)
+      crass (~> 1.0.2)
+      nokogiri (>= 1.5.9)
+    mail (2.7.1)
+      mini_mime (>= 0.1.1)
+    mini_mime (1.1.0)
+    mini_portile2 (2.5.1)
+    minitest (5.14.4)
+    nokogiri (1.11.3)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
+    racc (1.5.2)
+    rack (1.6.13)
+    rack-test (0.6.3)
       rack (>= 1.0)
-    rails (4.1.0.beta1)
-      actionmailer (= 4.1.0.beta1)
-      actionpack (= 4.1.0.beta1)
-      actionview (= 4.1.0.beta1)
-      activemodel (= 4.1.0.beta1)
-      activerecord (= 4.1.0.beta1)
-      activesupport (= 4.1.0.beta1)
+    rails (4.2.11.3)
+      actionmailer (= 4.2.11.3)
+      actionpack (= 4.2.11.3)
+      actionview (= 4.2.11.3)
+      activejob (= 4.2.11.3)
+      activemodel (= 4.2.11.3)
+      activerecord (= 4.2.11.3)
+      activesupport (= 4.2.11.3)
       bundler (>= 1.3.0, < 2.0)
-      railties (= 4.1.0.beta1)
-      sprockets-rails (~> 2.0.0)
-    railties (4.1.0.beta1)
-      actionpack (= 4.1.0.beta1)
-      activesupport (= 4.1.0.beta1)
+      railties (= 4.2.11.3)
+      sprockets-rails
+    rails-deprecated_sanitizer (1.0.4)
+      activesupport (>= 4.2.0.alpha)
+    rails-dom-testing (1.0.9)
+      activesupport (>= 4.2.0, < 5.0)
+      nokogiri (~> 1.6)
+      rails-deprecated_sanitizer (>= 1.0.1)
+    rails-html-sanitizer (1.3.0)
+      loofah (~> 2.3)
+    railties (4.2.11.3)
+      actionpack (= 4.2.11.3)
+      activesupport (= 4.2.11.3)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rake (10.1.1)
-    sprockets (2.10.1)
-      hike (~> 1.2)
-      multi_json (~> 1.0)
-      rack (~> 1.0)
-      tilt (~> 1.1, != 1.3.0)
-    sprockets-rails (2.0.1)
-      actionpack (>= 3.0)
-      activesupport (>= 3.0)
-      sprockets (~> 2.8)
-    sqlite3 (1.3.8)
-    thor (0.18.1)
-    thread_safe (0.1.3)
-      atomic
-    tilt (1.4.1)
-    treetop (1.4.15)
-      polyglot
-      polyglot (>= 0.3.1)
-    tzinfo (1.1.0)
+    rake (13.0.3)
+    sprockets (4.0.2)
+      concurrent-ruby (~> 1.0)
+      rack (> 1, < 3)
+    sprockets-rails (3.2.2)
+      actionpack (>= 4.0)
+      activesupport (>= 4.0)
+      sprockets (>= 3.0.0)
+    thor (1.1.0)
+    thread_safe (0.3.6)
+    tzinfo (1.2.9)
       thread_safe (~> 0.1)
 
 PLATFORMS
@@ -91,4 +107,3 @@ PLATFORMS
 
 DEPENDENCIES
   singleton-rails!
-  sqlite3