Upgrade to ruby 2.3.1 and rails 4.2.7.

Gemfile

@@ -1,8 +1,8 @@
 source 'https://rubygems.org'
 
-ruby '2.2.3'
+ruby '2.3.1'
 
-gem 'rails', '4.2.6'
+gem 'rails', '4.2.7'
 gem 'rails-observers'
 gem 'activerecord-session_store'
 

Gemfile.lock

@@ -1,34 +1,34 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    actionmailer (4.2.6)
-      actionpack (= 4.2.6)
-      actionview (= 4.2.6)
-      activejob (= 4.2.6)
+    actionmailer (4.2.7)
+      actionpack (= 4.2.7)
+      actionview (= 4.2.7)
+      activejob (= 4.2.7)
       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 (4.2.7)
+      actionview (= 4.2.7)
+      activesupport (= 4.2.7)
       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 (4.2.7)
+      activesupport (= 4.2.7)
       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)
+    activejob (4.2.7)
+      activesupport (= 4.2.7)
       globalid (>= 0.3.0)
-    activemodel (4.2.6)
-      activesupport (= 4.2.6)
+    activemodel (4.2.7)
+      activesupport (= 4.2.7)
       builder (~> 3.1)
-    activerecord (4.2.6)
-      activemodel (= 4.2.6)
-      activesupport (= 4.2.6)
+    activerecord (4.2.7)
+      activemodel (= 4.2.7)
+      activesupport (= 4.2.7)
       arel (~> 6.0)
     activerecord-session_store (1.0.0)
       actionpack (>= 4.0, < 5.1)
@@ -36,7 +36,7 @@ GEM
       multi_json (~> 1.11, >= 1.11.2)
       rack (>= 1.5.2, < 3)
       railties (>= 4.0, < 5.1)
-    activesupport (4.2.6)
+    activesupport (4.2.7)
       i18n (~> 0.7)
       json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
@@ -217,16 +217,16 @@ GEM
       rack
     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 (4.2.7)
+      actionmailer (= 4.2.7)
+      actionpack (= 4.2.7)
+      actionview (= 4.2.7)
+      activejob (= 4.2.7)
+      activemodel (= 4.2.7)
+      activerecord (= 4.2.7)
+      activesupport (= 4.2.7)
       bundler (>= 1.3.0, < 2.0)
-      railties (= 4.2.6)
+      railties (= 4.2.7)
       sprockets-rails
     rails-deprecated_sanitizer (1.0.3)
       activesupport (>= 4.2.0.alpha)
@@ -238,9 +238,9 @@ GEM
       loofah (~> 2.0)
     rails-observers (0.1.2)
       activemodel (~> 4.0)
-    railties (4.2.6)
-      actionpack (= 4.2.6)
-      activesupport (= 4.2.6)
+    railties (4.2.7)
+      actionpack (= 4.2.7)
+      activesupport (= 4.2.7)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rainbow (2.1.0)
@@ -369,7 +369,7 @@ DEPENDENCIES
   pre-commit
   puma
   rack-livereload
-  rails (= 4.2.6)
+  rails (= 4.2.7)
   rails-observers
   rb-fsevent
   rubocop
@@ -389,5 +389,8 @@ DEPENDENCIES
   writeexcel
   zendesk_api
 
+RUBY VERSION
+   ruby 2.3.1p112
+
 BUNDLED WITH
-   1.11.2
+   1.12.5