diff --git a/Gemfile.lock b/Gemfile.lock
index bfc9519..3356555 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,52 +7,52 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    actionmailer (4.2.6)
-      actionpack (= 4.2.6)
-      actionview (= 4.2.6)
-      activejob (= 4.2.6)
+    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 (4.2.6)
-      actionview (= 4.2.6)
-      activesupport (= 4.2.6)
+    actionpack (4.2.11.3)
+      actionview (= 4.2.11.3)
+      activesupport (= 4.2.11.3)
       rack (~> 1.6)
       rack-test (~> 0.6.2)
       rails-dom-testing (~> 1.0, >= 1.0.5)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (4.2.6)
-      activesupport (= 4.2.6)
+    actionview (4.2.11.3)
+      activesupport (= 4.2.11.3)
       builder (~> 3.1)
       erubis (~> 2.7.0)
       rails-dom-testing (~> 1.0, >= 1.0.5)
-      rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    activejob (4.2.6)
-      activesupport (= 4.2.6)
+      rails-html-sanitizer (~> 1.0, >= 1.0.3)
+    activejob (4.2.11.3)
+      activesupport (= 4.2.11.3)
       globalid (>= 0.3.0)
-    activemodel (4.2.6)
-      activesupport (= 4.2.6)
+    activemodel (4.2.11.3)
+      activesupport (= 4.2.11.3)
       builder (~> 3.1)
-    activerecord (4.2.6)
-      activemodel (= 4.2.6)
-      activesupport (= 4.2.6)
+    activerecord (4.2.11.3)
+      activemodel (= 4.2.11.3)
+      activesupport (= 4.2.11.3)
       arel (~> 6.0)
-    activesupport (4.2.6)
+    activesupport (4.2.11.3)
       i18n (~> 0.7)
-      json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    arel (6.0.3)
-    builder (3.2.2)
+    arel (6.0.4)
+    builder (3.2.4)
     byebug (8.2.0)
     coderay (1.1.1)
-    concurrent-ruby (1.0.1)
+    concurrent-ruby (1.1.10)
+    crass (1.0.6)
     diff-lcs (1.2.5)
     erubis (2.7.0)
     ffi (1.9.10)
     formatador (0.2.5)
-    globalid (0.3.6)
-      activesupport (>= 4.1.0)
+    globalid (0.4.2)
+      activesupport (>= 4.2.0)
     guard (2.13.0)
       formatador (>= 0.2.4)
       listen (>= 2.7, <= 4.0)
@@ -67,25 +67,25 @@ GEM
       guard (~> 2.1)
       guard-compat (~> 1.1)
       rspec (>= 2.99.0, < 4.0)
-    i18n (0.7.0)
-    json (1.8.3)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     listen (3.0.6)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9.7)
-    loofah (2.0.3)
+    loofah (2.17.0)
+      crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     lumberjack (1.0.10)
-    mail (2.6.4)
-      mime-types (>= 1.16, < 4)
+    mail (2.7.1)
+      mini_mime (>= 0.1.1)
     method_source (0.8.2)
-    mime-types (3.0)
-      mime-types-data (~> 3.2015)
-    mime-types-data (3.2016.0221)
-    mini_portile2 (2.0.0)
-    minitest (5.8.4)
+    mini_mime (1.1.2)
+    mini_portile2 (2.8.0)
+    minitest (5.15.0)
     nenv (0.3.0)
-    nokogiri (1.6.7.2)
-      mini_portile2 (~> 2.0.0.rc2)
+    nokogiri (1.13.4)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     notiffany (0.0.8)
       nenv (~> 0.1)
       shellany (~> 0.0)
@@ -93,34 +93,35 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
-    rack (1.6.4)
+    racc (1.6.0)
+    rack (1.6.13)
     rack-test (0.6.3)
       rack (>= 1.0)
-    rails (4.2.6)
-      actionmailer (= 4.2.6)
-      actionpack (= 4.2.6)
-      actionview (= 4.2.6)
-      activejob (= 4.2.6)
-      activemodel (= 4.2.6)
-      activerecord (= 4.2.6)
-      activesupport (= 4.2.6)
+    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 (= 4.2.6)
+      railties (= 4.2.11.3)
       sprockets-rails
-    rails-deprecated_sanitizer (1.0.3)
+    rails-deprecated_sanitizer (1.0.4)
       activesupport (>= 4.2.0.alpha)
-    rails-dom-testing (1.0.7)
-      activesupport (>= 4.2.0.beta, < 5.0)
-      nokogiri (~> 1.6.0)
+    rails-dom-testing (1.0.9)
+      activesupport (>= 4.2.0, < 5.0)
+      nokogiri (~> 1.6)
       rails-deprecated_sanitizer (>= 1.0.1)
-    rails-html-sanitizer (1.0.3)
-      loofah (~> 2.0)
-    railties (4.2.6)
-      actionpack (= 4.2.6)
-      activesupport (= 4.2.6)
+    rails-html-sanitizer (1.4.2)
+      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 (11.1.1)
+    rake (13.0.6)
     rb-fsevent (0.9.7)
     rb-inotify (0.9.7)
       ffi (>= 0.5.0)
@@ -147,17 +148,17 @@ GEM
     rspec-support (3.2.2)
     shellany (0.0.1)
     slop (3.6.0)
-    sprockets (3.5.2)
+    sprockets (4.0.3)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
-    sprockets-rails (3.0.4)
+    sprockets-rails (3.2.2)
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
     sqlite3 (1.3.11)
-    thor (0.19.1)
-    thread_safe (0.3.5)
-    tzinfo (1.2.2)
+    thor (1.2.1)
+    thread_safe (0.3.6)
+    tzinfo (1.2.9)
       thread_safe (~> 0.1)
 
 PLATFORMS