diff --git a/Gemfile.lock b/Gemfile.lock
index 3ca0fad..0cb6259 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,127 +7,128 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (5.0.0.1)
-      actionpack (= 5.0.0.1)
-      nio4r (~> 1.2)
+    actioncable (5.1.5)
+      actionpack (= 5.1.5)
+      nio4r (~> 2.0)
       websocket-driver (~> 0.6.1)
-    actionmailer (5.0.0.1)
-      actionpack (= 5.0.0.1)
-      actionview (= 5.0.0.1)
-      activejob (= 5.0.0.1)
+    actionmailer (5.1.5)
+      actionpack (= 5.1.5)
+      actionview (= 5.1.5)
+      activejob (= 5.1.5)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 2.0)
-    actionpack (5.0.0.1)
-      actionview (= 5.0.0.1)
-      activesupport (= 5.0.0.1)
+    actionpack (5.1.5)
+      actionview (= 5.1.5)
+      activesupport (= 5.1.5)
       rack (~> 2.0)
-      rack-test (~> 0.6.3)
+      rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.0.0.1)
-      activesupport (= 5.0.0.1)
+    actionview (5.1.5)
+      activesupport (= 5.1.5)
       builder (~> 3.1)
-      erubis (~> 2.7.0)
+      erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    activejob (5.0.0.1)
-      activesupport (= 5.0.0.1)
+      rails-html-sanitizer (~> 1.0, >= 1.0.3)
+    activejob (5.1.5)
+      activesupport (= 5.1.5)
       globalid (>= 0.3.6)
-    activemodel (5.0.0.1)
-      activesupport (= 5.0.0.1)
-    activerecord (5.0.0.1)
-      activemodel (= 5.0.0.1)
-      activesupport (= 5.0.0.1)
-      arel (~> 7.0)
-    activesupport (5.0.0.1)
+    activemodel (5.1.5)
+      activesupport (= 5.1.5)
+    activerecord (5.1.5)
+      activemodel (= 5.1.5)
+      activesupport (= 5.1.5)
+      arel (~> 8.0)
+    activesupport (5.1.5)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (~> 0.7)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    arel (7.1.4)
-    builder (3.2.2)
-    concurrent-ruby (1.0.2)
-    concurrent-ruby (1.0.2-java)
-    dalli (2.7.6)
-    diff-lcs (1.2.5)
-    erubis (2.7.0)
-    globalid (0.3.7)
-      activesupport (>= 4.1.0)
-    i18n (0.7.0)
-    loofah (2.0.3)
+    arel (8.0.0)
+    builder (3.2.3)
+    concurrent-ruby (1.0.5)
+    concurrent-ruby (1.0.5-java)
+    crass (1.0.3)
+    dalli (2.7.7)
+    diff-lcs (1.3)
+    erubi (1.7.1)
+    globalid (0.4.1)
+      activesupport (>= 4.2.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
+    loofah (2.2.2)
+      crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
-    mail (2.6.4)
-      mime-types (>= 1.16, < 4)
-    method_source (0.8.2)
-    mime-types (3.1)
-      mime-types-data (~> 3.2015)
-    mime-types-data (3.2016.0521)
-    mini_portile2 (2.1.0)
-    minitest (5.9.1)
-    nio4r (1.2.1)
-    nio4r (1.2.1-java)
-    nokogiri (1.6.8.1)
-      mini_portile2 (~> 2.1.0)
-    nokogiri (1.6.8.1-java)
-    rack (2.0.1)
-    rack-test (0.6.3)
-      rack (>= 1.0)
-    rails (5.0.0.1)
-      actioncable (= 5.0.0.1)
-      actionmailer (= 5.0.0.1)
-      actionpack (= 5.0.0.1)
-      actionview (= 5.0.0.1)
-      activejob (= 5.0.0.1)
-      activemodel (= 5.0.0.1)
-      activerecord (= 5.0.0.1)
-      activesupport (= 5.0.0.1)
-      bundler (>= 1.3.0, < 2.0)
-      railties (= 5.0.0.1)
+    mail (2.7.0)
+      mini_mime (>= 0.1.1)
+    method_source (0.9.0)
+    mini_mime (1.0.0)
+    mini_portile2 (2.3.0)
+    minitest (5.11.3)
+    nio4r (2.3.0)
+    nio4r (2.3.0-java)
+    nokogiri (1.8.2)
+      mini_portile2 (~> 2.3.0)
+    nokogiri (1.8.2-java)
+    rack (2.0.4)
+    rack-test (1.0.0)
+      rack (>= 1.0, < 3)
+    rails (5.1.5)
+      actioncable (= 5.1.5)
+      actionmailer (= 5.1.5)
+      actionpack (= 5.1.5)
+      actionview (= 5.1.5)
+      activejob (= 5.1.5)
+      activemodel (= 5.1.5)
+      activerecord (= 5.1.5)
+      activesupport (= 5.1.5)
+      bundler (>= 1.3.0)
+      railties (= 5.1.5)
       sprockets-rails (>= 2.0.0)
-    rails-dom-testing (2.0.1)
-      activesupport (>= 4.2.0, < 6.0)
-      nokogiri (~> 1.6.0)
-    rails-html-sanitizer (1.0.3)
-      loofah (~> 2.0)
-    railties (5.0.0.1)
-      actionpack (= 5.0.0.1)
-      activesupport (= 5.0.0.1)
+    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)
+    railties (5.1.5)
+      actionpack (= 5.1.5)
+      activesupport (= 5.1.5)
       method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rake (11.3.0)
-    rake-compiler (1.0.3)
+    rake (12.3.1)
+    rake-compiler (1.0.4)
       rake
-    rspec (3.3.0)
-      rspec-core (~> 3.3.0)
-      rspec-expectations (~> 3.3.0)
-      rspec-mocks (~> 3.3.0)
-    rspec-core (3.3.2)
-      rspec-support (~> 3.3.0)
-    rspec-expectations (3.3.1)
+    rspec (3.7.0)
+      rspec-core (~> 3.7.0)
+      rspec-expectations (~> 3.7.0)
+      rspec-mocks (~> 3.7.0)
+    rspec-core (3.7.1)
+      rspec-support (~> 3.7.0)
+    rspec-expectations (3.7.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.3.0)
-    rspec-mocks (3.3.2)
+      rspec-support (~> 3.7.0)
+    rspec-mocks (3.7.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.3.0)
-    rspec-support (3.3.0)
-    sprockets (3.7.0)
+      rspec-support (~> 3.7.0)
+    rspec-support (3.7.1)
+    sprockets (3.7.1)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
-    sprockets-rails (3.2.0)
+    sprockets-rails (3.2.1)
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
-    thor (0.19.1)
-    thread_safe (0.3.5)
-    thread_safe (0.3.5-java)
-    tzinfo (1.2.2)
+    thor (0.20.0)
+    thread_safe (0.3.6)
+    thread_safe (0.3.6-java)
+    tzinfo (1.2.5)
       thread_safe (~> 0.1)
-    websocket-driver (0.6.4)
+    websocket-driver (0.6.5)
       websocket-extensions (>= 0.1.0)
-    websocket-driver (0.6.4-java)
+    websocket-driver (0.6.5-java)
       websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.2)
+    websocket-extensions (0.1.3)
 
 PLATFORMS
   java
@@ -142,4 +143,4 @@ DEPENDENCIES
   rucaptcha!
 
 BUNDLED WITH
-   1.15.4
+   1.16.1