diff --git a/Gemfile.lock b/Gemfile.lock
index 0e3e9b9..d702de3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,49 +1,49 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (5.1.6)
-      actionpack (= 5.1.6)
+    actioncable (5.1.6.2)
+      actionpack (= 5.1.6.2)
       nio4r (~> 2.0)
       websocket-driver (~> 0.6.1)
-    actionmailer (5.1.6)
-      actionpack (= 5.1.6)
-      actionview (= 5.1.6)
-      activejob (= 5.1.6)
+    actionmailer (5.1.6.2)
+      actionpack (= 5.1.6.2)
+      actionview (= 5.1.6.2)
+      activejob (= 5.1.6.2)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 2.0)
-    actionpack (5.1.6)
-      actionview (= 5.1.6)
-      activesupport (= 5.1.6)
+    actionpack (5.1.6.2)
+      actionview (= 5.1.6.2)
+      activesupport (= 5.1.6.2)
       rack (~> 2.0)
       rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.1.6)
-      activesupport (= 5.1.6)
+    actionview (5.1.6.2)
+      activesupport (= 5.1.6.2)
       builder (~> 3.1)
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    activejob (5.1.6)
-      activesupport (= 5.1.6)
+    activejob (5.1.6.2)
+      activesupport (= 5.1.6.2)
       globalid (>= 0.3.6)
-    activemodel (5.1.6)
-      activesupport (= 5.1.6)
-    activerecord (5.1.6)
-      activemodel (= 5.1.6)
-      activesupport (= 5.1.6)
+    activemodel (5.1.6.2)
+      activesupport (= 5.1.6.2)
+    activerecord (5.1.6.2)
+      activemodel (= 5.1.6.2)
+      activesupport (= 5.1.6.2)
       arel (~> 8.0)
-    activesupport (5.1.6)
+    activesupport (5.1.6.2)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.5.2)
+    addressable (2.6.0)
       public_suffix (>= 2.0.2, < 4.0)
-    airbrussh (1.3.0)
+    airbrussh (1.3.1)
       sshkit (>= 1.6.1, != 1.7.0)
     arel (8.0.0)
-    autoprefixer-rails (9.1.4)
+    autoprefixer-rails (9.5.0)
       execjs
     bcrypt (3.1.12)
     bcrypt_pbkdf (1.0.0)
@@ -53,20 +53,19 @@ GEM
       popper_js (>= 1.12.9, < 2)
       sass (>= 3.5.2)
     builder (3.2.3)
-    capistrano (3.10.2)
+    capistrano (3.11.0)
       airbrussh (>= 1.0.0)
       i18n
       rake (>= 10.0.0)
       sshkit (>= 1.9.0)
-    capistrano-bundler (1.3.0)
+    capistrano-bundler (1.5.0)
       capistrano (~> 3.1)
-      sshkit (~> 1.2)
     capistrano-passenger (0.2.0)
       capistrano (~> 3.0)
-    capistrano-rails (1.3.1)
+    capistrano-rails (1.4.0)
       capistrano (~> 3.1)
       capistrano-bundler (~> 1.1)
-    capistrano-rbenv (2.1.3)
+    capistrano-rbenv (2.1.4)
       capistrano (~> 3.1)
       sshkit (~> 1.3)
     capybara (2.18.0)
@@ -76,7 +75,7 @@ GEM
       rack (>= 1.0.0)
       rack-test (>= 0.5.4)
       xpath (>= 2.0, < 4.0)
-    carrierwave (1.2.3)
+    carrierwave (1.3.1)
       activemodel (>= 4.0.0)
       activesupport (>= 4.0.0)
       mime-types (>= 1.16)
@@ -90,33 +89,33 @@ GEM
     chronic (0.10.2)
     coderay (1.1.2)
     colorator (1.1.0)
-    commonmarker (0.17.9)
+    commonmarker (0.18.2)
       ruby-enum (~> 0.5)
-    concurrent-ruby (1.0.5)
+    concurrent-ruby (1.1.5)
     crass (1.0.4)
-    dotenv (2.2.2)
-    dotenv-rails (2.2.2)
-      dotenv (= 2.2.2)
-      railties (>= 3.2, < 6.0)
+    dotenv (2.7.1)
+    dotenv-rails (2.7.1)
+      dotenv (= 2.7.1)
+      railties (>= 3.2, < 6.1)
     em-websocket (0.5.1)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
-    email_address (0.1.9)
+    email_address (0.1.11)
       netaddr (~> 2.0)
       simpleidn
-    erubi (1.7.1)
+    erubi (1.8.0)
     erubis (2.7.0)
-    eventmachine (1.2.5)
-    exception_notification (4.2.2)
+    eventmachine (1.2.7)
+    exception_notification (4.3.0)
       actionmailer (>= 4.0, < 6)
       activesupport (>= 4.0, < 6)
     execjs (2.7.0)
-    fastimage (2.1.3)
-    ffi (1.9.25)
+    fastimage (2.1.5)
+    ffi (1.10.0)
     font-awesome-rails (4.7.0.4)
       railties (>= 3.2, < 6.0)
     forwardable-extended (2.6.0)
-    globalid (0.4.1)
+    globalid (0.4.2)
       activesupport (>= 4.2.0)
     haml (5.0.4)
       temple (>= 0.8.0)
@@ -135,10 +134,10 @@ GEM
     http_parser.rb (0.6.0)
     i18n (0.9.5)
       concurrent-ruby (~> 1.0)
-    jbuilder (2.7.0)
+    jbuilder (2.8.0)
       activesupport (>= 4.2.0)
       multi_json (>= 1.2)
-    jekyll (3.7.3)
+    jekyll (3.8.5)
       addressable (~> 2.4)
       colorator (~> 1.0)
       em-websocket (~> 0.5)
@@ -153,68 +152,68 @@ GEM
       safe_yaml (~> 1.0)
     jekyll-sass-converter (1.5.2)
       sass (~> 3.4)
-    jekyll-watch (2.0.0)
+    jekyll-watch (2.2.1)
       listen (~> 3.0)
-    jquery-rails (4.3.1)
+    jquery-rails (4.3.3)
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
-    kramdown (1.16.2)
+    kramdown (1.17.0)
     launchy (2.4.3)
       addressable (~> 2.3)
-    letter_opener (1.6.0)
+    letter_opener (1.7.0)
       launchy (~> 2.2)
-    liquid (4.0.0)
+    liquid (4.0.3)
     listen (3.1.5)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.2.2)
+    loofah (2.2.3)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
-    mail (2.7.0)
+    mail (2.7.1)
       mini_mime (>= 0.1.1)
     mercenary (0.3.6)
-    method_source (0.9.0)
-    mime-types (3.1)
+    method_source (0.9.2)
+    mime-types (3.2.2)
       mime-types-data (~> 3.2015)
-    mime-types-data (3.2016.0521)
-    mini_magick (4.8.0)
-    mini_mime (1.0.0)
-    mini_portile2 (2.3.0)
+    mime-types-data (3.2018.0812)
+    mini_magick (4.9.3)
+    mini_mime (1.0.1)
+    mini_portile2 (2.4.0)
     minitest (5.11.3)
     multi_json (1.13.1)
-    net-scp (1.2.1)
-      net-ssh (>= 2.6.5)
-    net-ssh (4.2.0)
+    net-scp (2.0.0)
+      net-ssh (>= 2.6.5, < 6.0.0)
+    net-ssh (5.2.0)
     netaddr (2.0.3)
-    nio4r (2.3.0)
-    nokogiri (1.8.2)
-      mini_portile2 (~> 2.3.0)
-    pathutil (0.16.1)
+    nio4r (2.3.1)
+    nokogiri (1.10.2)
+      mini_portile2 (~> 2.4.0)
+    pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    popper_js (1.14.3)
-    pry (0.11.3)
+    popper_js (1.14.5)
+    pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    public_suffix (3.0.2)
-    puma (3.11.4)
-    pundit (2.0.0)
+    public_suffix (3.0.3)
+    puma (3.12.1)
+    pundit (2.0.1)
       activesupport (>= 3.0.0)
-    rack (2.0.4)
-    rack-test (1.0.0)
+    rack (2.0.6)
+    rack-test (1.1.0)
       rack (>= 1.0, < 3)
-    rails (5.1.6)
-      actioncable (= 5.1.6)
-      actionmailer (= 5.1.6)
-      actionpack (= 5.1.6)
-      actionview (= 5.1.6)
-      activejob (= 5.1.6)
-      activemodel (= 5.1.6)
-      activerecord (= 5.1.6)
-      activesupport (= 5.1.6)
+    rails (5.1.6.2)
+      actioncable (= 5.1.6.2)
+      actionmailer (= 5.1.6.2)
+      actionpack (= 5.1.6.2)
+      actionview (= 5.1.6.2)
+      activejob (= 5.1.6.2)
+      activemodel (= 5.1.6.2)
+      activerecord (= 5.1.6.2)
+      activesupport (= 5.1.6.2)
       bundler (>= 1.3.0)
-      railties (= 5.1.6)
+      railties (= 5.1.6.2)
       sprockets-rails (>= 2.0.0)
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
@@ -223,27 +222,27 @@ GEM
       loofah (~> 2.2, >= 2.2.2)
     rails_warden (0.6.0)
       warden (>= 1.2.0)
-    railties (5.1.6)
-      actionpack (= 5.1.6)
-      activesupport (= 5.1.6)
+    railties (5.1.6.2)
+      actionpack (= 5.1.6.2)
+      activesupport (= 5.1.6.2)
       method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rake (12.3.1)
+    rake (12.3.2)
     rb-fsevent (0.10.3)
-    rb-inotify (0.9.10)
-      ffi (>= 0.5.0, < 2)
+    rb-inotify (0.10.0)
+      ffi (~> 1.0)
     rbnacl (4.0.2)
       ffi
-    rouge (3.1.1)
+    rouge (3.3.0)
     ruby-enum (0.7.2)
       i18n
     ruby_dep (1.5.0)
-    ruby_parser (3.11.0)
+    ruby_parser (3.13.0)
       sexp_processor (~> 4.9)
-    rubyzip (1.2.1)
-    safe_yaml (1.0.4)
-    sass (3.5.7)
+    rubyzip (1.2.2)
+    safe_yaml (1.0.5)
+    sass (3.7.3)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)
       rb-fsevent (~> 0.9, >= 0.9.4)
@@ -254,10 +253,10 @@ GEM
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
       tilt (>= 1.1, < 3)
-    selenium-webdriver (3.11.0)
+    selenium-webdriver (3.141.0)
       childprocess (~> 0.5)
-      rubyzip (~> 1.2)
-    sexp_processor (4.11.0)
+      rubyzip (~> 1.2, >= 1.2.2)
+    sexp_processor (4.12.0)
     simpleidn (0.1.1)
       unf (~> 0.1.4)
     spring (2.0.2)
@@ -265,34 +264,34 @@ GEM
     spring-watcher-listen (2.0.1)
       listen (>= 2.7, < 4.0)
       spring (>= 1.2, < 3.0)
-    sprockets (3.7.1)
+    sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
     sprockets-rails (3.2.1)
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
-    sqlite3 (1.3.13)
-    sshkit (1.16.0)
+    sqlite3 (1.4.0)
+    sshkit (1.18.2)
       net-scp (>= 1.1.2)
       net-ssh (>= 2.8.0)
-    temple (0.8.0)
-    thor (0.20.0)
+    temple (0.8.1)
+    thor (0.20.3)
     thread_safe (0.3.6)
-    tilt (2.0.8)
-    turbolinks (5.1.1)
-      turbolinks-source (~> 5.1)
-    turbolinks-source (5.1.0)
+    tilt (2.0.9)
+    turbolinks (5.2.0)
+      turbolinks-source (~> 5.2)
+    turbolinks-source (5.2.0)
     tzinfo (1.2.5)
       thread_safe (~> 0.1)
-    uglifier (4.1.9)
+    uglifier (4.1.20)
       execjs (>= 0.3.0, < 3)
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.7.5)
-    warden (1.2.7)
-      rack (>= 1.0)
-    web-console (3.6.0)
+    warden (1.2.8)
+      rack (>= 2.0.6)
+    web-console (3.7.0)
       actionview (>= 5.0)
       activemodel (>= 5.0)
       bindex (>= 0.4.0)
@@ -302,7 +301,7 @@ GEM
     websocket-extensions (0.1.3)
     whenever (0.10.0)
       chronic (>= 0.6.3)
-    xpath (3.0.0)
+    xpath (3.2.0)
       nokogiri (~> 1.8)
 
 PLATFORMS
@@ -350,4 +349,4 @@ DEPENDENCIES
   whenever
 
 BUNDLED WITH
-   1.16.3
+   1.17.1