diff --git a/Gemfile.lock b/Gemfile.lock
index 4bcaf70..89566db 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -9,70 +9,109 @@ PATH
 GEM
   remote: http://rubygems.org/
   specs:
-    actionmailer (4.0.0)
-      actionpack (= 4.0.0)
-      mail (~> 2.5.3)
-    actionpack (4.0.0)
-      activesupport (= 4.0.0)
-      builder (~> 3.1.0)
-      erubis (~> 2.7.0)
-      rack (~> 1.5.2)
-      rack-test (~> 0.6.2)
-    activemodel (4.0.0)
-      activesupport (= 4.0.0)
-      builder (~> 3.1.0)
-    activerecord (4.0.0)
-      activemodel (= 4.0.0)
-      activerecord-deprecated_finders (~> 1.0.2)
-      activesupport (= 4.0.0)
-      arel (~> 4.0.0)
-    activerecord-deprecated_finders (1.0.3)
-    activesupport (4.0.0)
-      i18n (~> 0.6, >= 0.6.4)
-      minitest (~> 4.2)
-      multi_json (~> 1.3)
-      thread_safe (~> 0.1)
-      tzinfo (~> 0.3.37)
-    arel (4.0.0)
-    atomic (1.1.10)
-    builder (3.1.4)
+    actioncable (5.2.4.1)
+      actionpack (= 5.2.4.1)
+      nio4r (~> 2.0)
+      websocket-driver (>= 0.6.1)
+    actionmailer (5.2.4.1)
+      actionpack (= 5.2.4.1)
+      actionview (= 5.2.4.1)
+      activejob (= 5.2.4.1)
+      mail (~> 2.5, >= 2.5.4)
+      rails-dom-testing (~> 2.0)
+    actionpack (5.2.4.1)
+      actionview (= 5.2.4.1)
+      activesupport (= 5.2.4.1)
+      rack (~> 2.0, >= 2.0.8)
+      rack-test (>= 0.6.3)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.0, >= 1.0.2)
+    actionview (5.2.4.1)
+      activesupport (= 5.2.4.1)
+      builder (~> 3.1)
+      erubi (~> 1.4)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.0, >= 1.0.3)
+    activejob (5.2.4.1)
+      activesupport (= 5.2.4.1)
+      globalid (>= 0.3.6)
+    activemodel (5.2.4.1)
+      activesupport (= 5.2.4.1)
+    activerecord (5.2.4.1)
+      activemodel (= 5.2.4.1)
+      activesupport (= 5.2.4.1)
+      arel (>= 9.0)
+    activestorage (5.2.4.1)
+      actionpack (= 5.2.4.1)
+      activerecord (= 5.2.4.1)
+      marcel (~> 0.3.1)
+    activesupport (5.2.4.1)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (>= 0.7, < 2)
+      minitest (~> 5.1)
+      tzinfo (~> 1.1)
+    arel (9.0.0)
+    builder (3.2.4)
+    concurrent-ruby (1.1.5)
+    crass (1.0.5)
     diff-lcs (1.2.4)
-    erubis (2.7.0)
+    erubi (1.9.0)
     factory_girl (4.2.0)
       activesupport (>= 3.0.0)
-    hike (1.2.3)
-    i18n (0.6.4)
+    globalid (0.4.2)
+      activesupport (>= 4.2.0)
+    i18n (1.7.0)
+      concurrent-ruby (~> 1.0)
     lockfile (2.1.0)
-    mail (2.5.4)
-      mime-types (~> 1.16)
-      treetop (~> 1.4.8)
+    loofah (2.4.0)
+      crass (~> 1.0.2)
+      nokogiri (>= 1.5.9)
+    mail (2.7.1)
+      mini_mime (>= 0.1.1)
+    marcel (0.3.3)
+      mimemagic (~> 0.3.2)
     metaclass (0.0.1)
-    mime-types (1.23)
+    method_source (0.9.2)
+    mime-types (3.3)
+      mime-types-data (~> 3.2015)
+    mime-types-data (3.2019.1009)
+    mimemagic (0.3.3)
+    mini_mime (1.0.2)
     mini_portile (0.5.1)
-    minitest (4.7.5)
+    minitest (5.13.0)
     mocha (0.14.0)
       metaclass (~> 0.0.1)
-    multi_json (1.7.7)
+    nio4r (2.5.2)
     nokogiri (1.6.0)
       mini_portile (~> 0.5.0)
-    polyglot (0.3.3)
-    rack (1.5.2)
-    rack-test (0.6.2)
-      rack (>= 1.0)
-    rails (4.0.0)
-      actionmailer (= 4.0.0)
-      actionpack (= 4.0.0)
-      activerecord (= 4.0.0)
-      activesupport (= 4.0.0)
-      bundler (>= 1.3.0, < 2.0)
-      railties (= 4.0.0)
-      sprockets-rails (~> 2.0.0)
-    railties (4.0.0)
-      actionpack (= 4.0.0)
-      activesupport (= 4.0.0)
+    rack (2.0.8)
+    rack-test (1.1.0)
+      rack (>= 1.0, < 3)
+    rails (5.2.4.1)
+      actioncable (= 5.2.4.1)
+      actionmailer (= 5.2.4.1)
+      actionpack (= 5.2.4.1)
+      actionview (= 5.2.4.1)
+      activejob (= 5.2.4.1)
+      activemodel (= 5.2.4.1)
+      activerecord (= 5.2.4.1)
+      activestorage (= 5.2.4.1)
+      activesupport (= 5.2.4.1)
+      bundler (>= 1.3.0)
+      railties (= 5.2.4.1)
+      sprockets-rails (>= 2.0.0)
+    rails-dom-testing (2.0.3)
+      activesupport (>= 4.2.0)
+      nokogiri (>= 1.6)
+    rails-html-sanitizer (1.3.0)
+      loofah (~> 2.3)
+    railties (5.2.4.1)
+      actionpack (= 5.2.4.1)
+      activesupport (= 5.2.4.1)
+      method_source
       rake (>= 0.8.7)
-      thor (>= 0.18.1, < 2.0)
-    rake (10.1.0)
+      thor (>= 0.19.0, < 2.0)
+    rake (13.0.1)
     rest-client (1.6.7)
       mime-types (>= 1.16)
     rspec-core (2.14.3)
@@ -90,24 +129,21 @@ GEM
       nokogiri (>= 1.4.1)
       rest-client (>= 1.4.0)
     spork (0.9.2)
-    sprockets (2.10.0)
-      hike (~> 1.2)
-      multi_json (~> 1.0)
-      rack (~> 1.0)
-      tilt (~> 1.1, != 1.3.0)
-    sprockets-rails (2.0.0)
-      actionpack (>= 3.0)
-      activesupport (>= 3.0)
-      sprockets (~> 2.8)
+    sprockets (4.0.0)
+      concurrent-ruby (~> 1.0)
+      rack (> 1, < 3)
+    sprockets-rails (3.2.1)
+      actionpack (>= 4.0)
+      activesupport (>= 4.0)
+      sprockets (>= 3.0.0)
     sqlite3 (1.3.7)
-    thor (0.18.1)
-    thread_safe (0.1.0)
-      atomic
-    tilt (1.4.1)
-    treetop (1.4.14)
-      polyglot
-      polyglot (>= 0.3.1)
-    tzinfo (0.3.37)
+    thor (1.0.1)
+    thread_safe (0.3.6)
+    tzinfo (1.2.5)
+      thread_safe (~> 0.1)
+    websocket-driver (0.7.1)
+      websocket-extensions (>= 0.1.0)
+    websocket-extensions (0.1.4)
 
 PLATFORMS
   ruby