diff --git a/Gemfile.lock b/Gemfile.lock
index d4c06507..034de207 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -12,43 +12,43 @@ GEM
   remote: https://rubygems.org/
   remote: https://rails-assets.org/
   specs:
-    actioncable (5.0.5)
-      actionpack (= 5.0.5)
+    actioncable (5.0.7)
+      actionpack (= 5.0.7)
       nio4r (>= 1.2, < 3.0)
       websocket-driver (~> 0.6.1)
-    actionmailer (5.0.5)
-      actionpack (= 5.0.5)
-      actionview (= 5.0.5)
-      activejob (= 5.0.5)
+    actionmailer (5.0.7)
+      actionpack (= 5.0.7)
+      actionview (= 5.0.7)
+      activejob (= 5.0.7)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 2.0)
-    actionpack (5.0.5)
-      actionview (= 5.0.5)
-      activesupport (= 5.0.5)
+    actionpack (5.0.7)
+      actionview (= 5.0.7)
+      activesupport (= 5.0.7)
       rack (~> 2.0)
       rack-test (~> 0.6.3)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.0.5)
-      activesupport (= 5.0.5)
+    actionview (5.0.7)
+      activesupport (= 5.0.7)
       builder (~> 3.1)
       erubis (~> 2.7.0)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.3)
     active_model_serializers (0.9.4)
       activemodel (>= 3.2)
-    activejob (5.0.5)
-      activesupport (= 5.0.5)
+    activejob (5.0.7)
+      activesupport (= 5.0.7)
       globalid (>= 0.3.6)
-    activemodel (5.0.5)
-      activesupport (= 5.0.5)
-    activerecord (5.0.5)
-      activemodel (= 5.0.5)
-      activesupport (= 5.0.5)
+    activemodel (5.0.7)
+      activesupport (= 5.0.7)
+    activerecord (5.0.7)
+      activemodel (= 5.0.7)
+      activesupport (= 5.0.7)
       arel (~> 7.0)
-    activesupport (5.0.5)
+    activesupport (5.0.7)
       concurrent-ruby (~> 1.0, >= 1.0.2)
-      i18n (~> 0.7)
+      i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
     acts_as_commentable_with_threading (1.2.0)
@@ -193,7 +193,7 @@ GEM
     formtastic-bootstrap (3.1.1)
       formtastic (>= 3.0)
     geocoder (1.4.9)
-    globalid (0.4.0)
+    globalid (0.4.1)
       activesupport (>= 4.2.0)
     gravtastic (3.2.6)
     guard (2.14.1)
@@ -269,17 +269,18 @@ GEM
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     lumberjack (1.0.12)
-    mail (2.6.6)
-      mime-types (>= 1.16, < 4)
+    mail (2.7.0)
+      mini_mime (>= 0.1.1)
     method_source (0.8.2)
-    mime-types (3.1)
+    mime-types (3.2.2)
       mime-types-data (~> 3.2015)
-    mime-types-data (3.2016.0521)
+    mime-types-data (3.2018.0812)
     mimemagic (0.3.2)
     mina (0.3.8)
       open4 (~> 1.3.4)
       rake
     mini_magick (4.5.1)
+    mini_mime (1.0.1)
     mini_portile2 (2.3.0)
     minitest (5.11.3)
     momentjs-rails (2.8.1)
@@ -300,7 +301,7 @@ GEM
     nenv (0.3.0)
     netrc (0.11.0)
     nio4r (2.3.1)
-    nokogiri (1.8.3)
+    nokogiri (1.8.4)
       mini_portile2 (~> 2.3.0)
     notiffany (0.1.1)
       nenv (~> 0.1)
@@ -371,17 +372,17 @@ GEM
       ruby-openid (>= 2.1.8)
     rack-test (0.6.3)
       rack (>= 1.0)
-    rails (5.0.5)
-      actioncable (= 5.0.5)
-      actionmailer (= 5.0.5)
-      actionpack (= 5.0.5)
-      actionview (= 5.0.5)
-      activejob (= 5.0.5)
-      activemodel (= 5.0.5)
-      activerecord (= 5.0.5)
-      activesupport (= 5.0.5)
+    rails (5.0.7)
+      actioncable (= 5.0.7)
+      actionmailer (= 5.0.7)
+      actionpack (= 5.0.7)
+      actionview (= 5.0.7)
+      activejob (= 5.0.7)
+      activemodel (= 5.0.7)
+      activerecord (= 5.0.7)
+      activesupport (= 5.0.7)
       bundler (>= 1.3.0)
-      railties (= 5.0.5)
+      railties (= 5.0.7)
       sprockets-rails (>= 2.0.0)
     rails-assets-bootstrap (3.3.6)
       rails-assets-jquery (>= 1.9.1, < 3)
@@ -419,9 +420,9 @@ GEM
       rails_stdout_logging
     rails_serve_static_assets (0.0.4)
     rails_stdout_logging (0.0.3)
-    railties (5.0.5)
-      actionpack (= 5.0.5)
-      activesupport (= 5.0.5)
+    railties (5.0.7)
+      actionpack (= 5.0.7)
+      activesupport (= 5.0.7)
       method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
@@ -565,9 +566,9 @@ GEM
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
       hashdiff
-    websocket-driver (0.6.3)
+    websocket-driver (0.6.5)
       websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.2)
+    websocket-extensions (0.1.3)
     whenever (0.9.2)
       activesupport (>= 2.3.4)
       chronic (>= 0.6.3)