Upgrade to rails 4.2.9.

Gemfile

@@ -2,7 +2,7 @@ source 'https://rubygems.org'
 
 ruby '2.3.1'
 
-gem 'rails', '4.2.8'
+gem 'rails', '4.2.9'
 gem 'rails-observers'
 gem 'activerecord-session_store'
 

Gemfile.lock

@@ -1,34 +1,34 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    actionmailer (4.2.8)
-      actionpack (= 4.2.8)
-      actionview (= 4.2.8)
-      activejob (= 4.2.8)
+    actionmailer (4.2.9)
+      actionpack (= 4.2.9)
+      actionview (= 4.2.9)
+      activejob (= 4.2.9)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 1.0, >= 1.0.5)
-    actionpack (4.2.8)
-      actionview (= 4.2.8)
-      activesupport (= 4.2.8)
+    actionpack (4.2.9)
+      actionview (= 4.2.9)
+      activesupport (= 4.2.9)
       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 (4.2.8)
-      activesupport (= 4.2.8)
+    actionview (4.2.9)
+      activesupport (= 4.2.9)
       builder (~> 3.1)
       erubis (~> 2.7.0)
       rails-dom-testing (~> 1.0, >= 1.0.5)
       rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    activejob (4.2.8)
-      activesupport (= 4.2.8)
+    activejob (4.2.9)
+      activesupport (= 4.2.9)
       globalid (>= 0.3.0)
-    activemodel (4.2.8)
-      activesupport (= 4.2.8)
+    activemodel (4.2.9)
+      activesupport (= 4.2.9)
       builder (~> 3.1)
-    activerecord (4.2.8)
-      activemodel (= 4.2.8)
-      activesupport (= 4.2.8)
+    activerecord (4.2.9)
+      activemodel (= 4.2.9)
+      activesupport (= 4.2.9)
       arel (~> 6.0)
     activerecord-nulldb-adapter (0.3.6)
       activerecord (>= 2.0.0)
@@ -38,7 +38,7 @@ GEM
       multi_json (~> 1.11, >= 1.11.2)
       rack (>= 1.5.2, < 3)
       railties (>= 4.0, < 5.1)
-    activesupport (4.2.8)
+    activesupport (4.2.9)
       i18n (~> 0.7)
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
@@ -166,7 +166,7 @@ GEM
       domain_name (~> 0.5)
     http-form_data (1.0.3)
     http_parser.rb (0.6.0)
-    i18n (0.8.4)
+    i18n (0.8.6)
     icalendar (2.4.1)
     inflection (1.0.0)
     json (1.8.6)
@@ -193,7 +193,7 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
     mini_portile2 (2.2.0)
-    minitest (5.10.2)
+    minitest (5.10.3)
     multi_json (1.12.1)
     multi_xml (0.6.0)
     multipart-post (2.0.0)
@@ -266,16 +266,16 @@ GEM
       rack
     rack-test (0.6.3)
       rack (>= 1.0)
-    rails (4.2.8)
-      actionmailer (= 4.2.8)
-      actionpack (= 4.2.8)
-      actionview (= 4.2.8)
-      activejob (= 4.2.8)
-      activemodel (= 4.2.8)
-      activerecord (= 4.2.8)
-      activesupport (= 4.2.8)
+    rails (4.2.9)
+      actionmailer (= 4.2.9)
+      actionpack (= 4.2.9)
+      actionview (= 4.2.9)
+      activejob (= 4.2.9)
+      activemodel (= 4.2.9)
+      activerecord (= 4.2.9)
+      activesupport (= 4.2.9)
       bundler (>= 1.3.0, < 2.0)
-      railties (= 4.2.8)
+      railties (= 4.2.9)
       sprockets-rails
     rails-deprecated_sanitizer (1.0.3)
       activesupport (>= 4.2.0.alpha)
@@ -287,9 +287,9 @@ GEM
       loofah (~> 2.0)
     rails-observers (0.1.2)
       activemodel (~> 4.0)
-    railties (4.2.8)
-      actionpack (= 4.2.8)
-      activesupport (= 4.2.8)
+    railties (4.2.9)
+      actionpack (= 4.2.9)
+      activesupport (= 4.2.9)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rainbow (2.1.0)
@@ -474,7 +474,7 @@ DEPENDENCIES
   pre-commit
   puma
   rack-livereload
-  rails (= 4.2.8)
+  rails (= 4.2.9)
   rails-observers
   rb-fsevent
   rspec-rails