Revert Rails 5 gems so that Ruby 2.1 doesn't fail in travis

Author: mipearson

Gemfile.lock

@@ -7,45 +7,43 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (5.0.0)
-      actionpack (= 5.0.0)
-      nio4r (~> 1.2)
-      websocket-driver (~> 0.6.1)
-    actionmailer (5.0.0)
-      actionpack (= 5.0.0)
-      actionview (= 5.0.0)
-      activejob (= 5.0.0)
+    actionmailer (4.2.6)
+      actionpack (= 4.2.6)
+      actionview (= 4.2.6)
+      activejob (= 4.2.6)
       mail (~> 2.5, >= 2.5.4)
-      rails-dom-testing (~> 2.0)
-    actionpack (5.0.0)
-      actionview (= 5.0.0)
-      activesupport (= 5.0.0)
-      rack (~> 2.0)
-      rack-test (~> 0.6.3)
-      rails-dom-testing (~> 2.0)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
+    actionpack (4.2.6)
+      actionview (= 4.2.6)
+      activesupport (= 4.2.6)
+      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 (5.0.0)
-      activesupport (= 5.0.0)
+    actionview (4.2.6)
+      activesupport (= 4.2.6)
       builder (~> 3.1)
       erubis (~> 2.7.0)
-      rails-dom-testing (~> 2.0)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    activejob (5.0.0)
-      activesupport (= 5.0.0)
-      globalid (>= 0.3.6)
-    activemodel (5.0.0)
-      activesupport (= 5.0.0)
-    activerecord (5.0.0)
-      activemodel (= 5.0.0)
-      activesupport (= 5.0.0)
-      arel (~> 7.0)
-    activesupport (5.0.0)
-      concurrent-ruby (~> 1.0, >= 1.0.2)
+    activejob (4.2.6)
+      activesupport (= 4.2.6)
+      globalid (>= 0.3.0)
+    activemodel (4.2.6)
+      activesupport (= 4.2.6)
+      builder (~> 3.1)
+    activerecord (4.2.6)
+      activemodel (= 4.2.6)
+      activesupport (= 4.2.6)
+      arel (~> 6.0)
+    activesupport (4.2.6)
       i18n (~> 0.7)
+      json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
+      thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
     addressable (2.3.8)
-    arel (7.0.0)
+    arel (6.0.3)
     ast (2.1.0)
     astrolabe (1.3.1)
       parser (~> 2.2)
@@ -58,48 +56,46 @@ GEM
     globalid (0.3.6)
       activesupport (>= 4.1.0)
     i18n (0.7.0)
+    json (1.8.3)
     loofah (2.0.3)
       nokogiri (>= 1.5.9)
     mail (2.6.4)
       mime-types (>= 1.16, < 4)
-    method_source (0.8.2)
     mime-types (3.0)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0221)
-    mini_portile2 (2.1.0)
+    mini_portile2 (2.0.0)
     minitest (5.9.0)
-    nio4r (1.2.1)
-    nokogiri (1.6.8)
-      mini_portile2 (~> 2.1.0)
-      pkg-config (~> 1.1.7)
+    nokogiri (1.6.7.2)
+      mini_portile2 (~> 2.0.0.rc2)
     parser (2.2.2.6)
       ast (>= 1.1, < 3.0)
-    pkg-config (1.1.7)
     powerpack (0.1.1)
-    rack (2.0.1)
+    rack (1.6.4)
     rack-test (0.6.3)
       rack (>= 1.0)
-    rails (5.0.0)
-      actioncable (= 5.0.0)
-      actionmailer (= 5.0.0)
-      actionpack (= 5.0.0)
-      actionview (= 5.0.0)
-      activejob (= 5.0.0)
-      activemodel (= 5.0.0)
-      activerecord (= 5.0.0)
-      activesupport (= 5.0.0)
+    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)
       bundler (>= 1.3.0, < 2.0)
-      railties (= 5.0.0)
-      sprockets-rails (>= 2.0.0)
-    rails-dom-testing (2.0.1)
-      activesupport (>= 4.2.0, < 6.0)
+      railties (= 4.2.6)
+      sprockets-rails
+    rails-deprecated_sanitizer (1.0.3)
+      activesupport (>= 4.2.0.alpha)
+    rails-dom-testing (1.0.7)
+      activesupport (>= 4.2.0.beta, < 5.0)
       nokogiri (~> 1.6.0)
+      rails-deprecated_sanitizer (>= 1.0.1)
     rails-html-sanitizer (1.0.3)
       loofah (~> 2.0)
-    railties (5.0.0)
-      actionpack (= 5.0.0)
-      activesupport (= 5.0.0)
-      method_source
+    railties (4.2.6)
+      actionpack (= 4.2.6)
+      activesupport (= 4.2.6)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rainbow (2.0.0)
@@ -125,10 +121,10 @@ GEM
       ruby-progressbar (~> 1.4)
     ruby-progressbar (1.7.5)
     safe_yaml (1.0.4)
-    sprockets (3.6.3)
+    sprockets (3.6.0)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
-    sprockets-rails (3.1.1)
+    sprockets-rails (3.0.4)
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
@@ -139,9 +135,6 @@ GEM
     webmock (1.21.0)
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
-    websocket-driver (0.6.3)
-      websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.2)
 
 PLATFORMS
   ruby