diff --git a/Gemfile.lock b/Gemfile.lock
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -13,48 +13,51 @@
       ZenTest (~> 4.3)
     ZenTest (4.11.2)
     ace-rails-ap (4.2)
-    actionmailer (4.2.11.1)
-      actionpack (= 4.2.11.1)
-      actionview (= 4.2.11.1)
-      activejob (= 4.2.11.1)
+    actioncable (5.0.7.2)
+      actionpack (= 5.0.7.2)
+      nio4r (>= 1.2, < 3.0)
+      websocket-driver (~> 0.6.1)
+    actionmailer (5.0.7.2)
+      actionpack (= 5.0.7.2)
+      actionview (= 5.0.7.2)
+      activejob (= 5.0.7.2)
       mail (~> 2.5, >= 2.5.4)
-      rails-dom-testing (~> 1.0, >= 1.0.5)
-    actionpack (4.2.11.1)
-      actionview (= 4.2.11.1)
-      activesupport (= 4.2.11.1)
-      rack (~> 1.6)
-      rack-test (~> 0.6.2)
-      rails-dom-testing (~> 1.0, >= 1.0.5)
+      rails-dom-testing (~> 2.0)
+    actionpack (5.0.7.2)
+      actionview (= 5.0.7.2)
+      activesupport (= 5.0.7.2)
+      rack (~> 2.0)
+      rack-test (~> 0.6.3)
+      rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (4.2.11.1)
-      activesupport (= 4.2.11.1)
+    actionview (5.0.7.2)
+      activesupport (= 5.0.7.2)
       builder (~> 3.1)
       erubis (~> 2.7.0)
-      rails-dom-testing (~> 1.0, >= 1.0.5)
+      rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    activejob (4.2.11.1)
-      activesupport (= 4.2.11.1)
-      globalid (>= 0.3.0)
-    activemodel (4.2.11.1)
-      activesupport (= 4.2.11.1)
-      builder (~> 3.1)
-    activerecord (4.2.11.1)
-      activemodel (= 4.2.11.1)
-      activesupport (= 4.2.11.1)
-      arel (~> 6.0)
+    activejob (5.0.7.2)
+      activesupport (= 5.0.7.2)
+      globalid (>= 0.3.6)
+    activemodel (5.0.7.2)
+      activesupport (= 5.0.7.2)
+    activerecord (5.0.7.2)
+      activemodel (= 5.0.7.2)
+      activesupport (= 5.0.7.2)
+      arel (~> 7.0)
     activerecord-session_store (1.1.3)
       actionpack (>= 4.0)
       activerecord (>= 4.0)
       multi_json (~> 1.11, >= 1.11.2)
       rack (>= 1.5.2, < 3)
       railties (>= 4.0)
-    activesupport (4.2.11.1)
-      i18n (~> 0.7)
+    activesupport (5.0.7.2)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (>= 0.7, < 2)
       minitest (~> 5.1)
-      thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
     ansi (1.5.0)
-    arel (6.0.4)
+    arel (7.1.4)
     autoprefixer-rails (9.5.1.1)
       execjs
     best_in_place (3.0.3)
@@ -101,7 +104,7 @@
       haml (>= 4.0, < 6)
       nokogiri (>= 1.6.0)
       ruby_parser (~> 3.5)
-    i18n (0.9.5)
+    i18n (1.6.0)
       concurrent-ruby (~> 1.0)
     in_place_editing (1.2.0)
     jquery-countdown-rails (2.0.2)
@@ -125,6 +128,7 @@
       nokogiri (>= 1.5.9)
     mail (2.7.1)
       mini_mime (>= 0.1.1)
+    method_source (0.9.2)
     mini_mime (1.0.1)
     mini_portile2 (2.4.0)
     minitest (5.11.3)
@@ -137,35 +141,35 @@
       railties (>= 3.1)
     multi_json (1.13.1)
     mysql2 (0.5.2)
+    nio4r (2.3.1)
     nokogiri (1.10.3)
       mini_portile2 (~> 2.4.0)
-    rack (1.6.11)
+    rack (2.0.7)
     rack-test (0.6.3)
       rack (>= 1.0)
-    rails (4.2.11.1)
-      actionmailer (= 4.2.11.1)
-      actionpack (= 4.2.11.1)
-      actionview (= 4.2.11.1)
-      activejob (= 4.2.11.1)
-      activemodel (= 4.2.11.1)
-      activerecord (= 4.2.11.1)
-      activesupport (= 4.2.11.1)
-      bundler (>= 1.3.0, < 2.0)
-      railties (= 4.2.11.1)
-      sprockets-rails
-    rails-deprecated_sanitizer (1.0.3)
-      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 (5.0.7.2)
+      actioncable (= 5.0.7.2)
+      actionmailer (= 5.0.7.2)
+      actionpack (= 5.0.7.2)
+      actionview (= 5.0.7.2)
+      activejob (= 5.0.7.2)
+      activemodel (= 5.0.7.2)
+      activerecord (= 5.0.7.2)
+      activesupport (= 5.0.7.2)
+      bundler (>= 1.3.0)
+      railties (= 5.0.7.2)
+      sprockets-rails (>= 2.0.0)
+    rails-dom-testing (2.0.3)
+      activesupport (>= 4.2.0)
+      nokogiri (>= 1.6)
     rails-html-sanitizer (1.0.4)
       loofah (~> 2.2, >= 2.2.2)
     rails_bootstrap_sortable (2.0.6)
       momentjs-rails (>= 2.8.3)
-    railties (4.2.11.1)
-      actionpack (= 4.2.11.1)
-      activesupport (= 4.2.11.1)
+    railties (5.0.7.2)
+      actionpack (= 5.0.7.2)
+      activesupport (= 5.0.7.2)
+      method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rake (12.3.2)
@@ -216,6 +220,9 @@
       thread_safe (~> 0.1)
     uglifier (4.1.20)
       execjs (>= 0.3.0, < 3)
+    websocket-driver (0.6.5)
+      websocket-extensions (>= 0.1.0)
+    websocket-extensions (0.1.4)
     will_paginate (3.0.12)
     yaml_db (0.7.0)
       rails (>= 3.0)
@@ -250,7 +257,7 @@
   minitest-reporters
   momentjs-rails
   mysql2
-  rails (~> 4.2.0)
+  rails (~> 5.0)
   rails_bootstrap_sortable
   rdiscount
   rouge