Bump rails from 4.0.1 to 4.0.3

Bumps [rails](https://github.com/rails/rails) from 4.0.1 to 4.0.3.
- [Release notes](https://github.com/rails/rails/releases)
- [Commits](https://github.com/rails/rails/compare/v4.0.1...v4.0.3)

Signed-off-by: dependabot[bot] <support@github.com>

Gemfile.lock

@@ -1,34 +1,34 @@
 GEM
   remote: http://rubygems.org/
   specs:
-    actionmailer (4.0.1)
+    actionmailer (4.0.3)
-      actionpack (= 4.0.1)
+      actionpack (= 4.0.3)
       mail (~> 2.5.4)
-    actionpack (4.0.1)
+    actionpack (4.0.3)
-      activesupport (= 4.0.1)
+      activesupport (= 4.0.3)
       builder (~> 3.1.0)
       erubis (~> 2.7.0)
       rack (~> 1.5.2)
       rack-test (~> 0.6.2)
-    activemodel (4.0.1)
+    activemodel (4.0.3)
-      activesupport (= 4.0.1)
+      activesupport (= 4.0.3)
       builder (~> 3.1.0)
-    activerecord (4.0.1)
+    activerecord (4.0.3)
-      activemodel (= 4.0.1)
+      activemodel (= 4.0.3)
       activerecord-deprecated_finders (~> 1.0.2)
-      activesupport (= 4.0.1)
+      activesupport (= 4.0.3)
       arel (~> 4.0.0)
-    activerecord-deprecated_finders (1.0.3)
+    activerecord-deprecated_finders (1.0.4)
-    activesupport (4.0.1)
+    activesupport (4.0.3)
       i18n (~> 0.6, >= 0.6.4)
       minitest (~> 4.2)
       multi_json (~> 1.3)
       thread_safe (~> 0.1)
       tzinfo (~> 0.3.37)
     addressable (2.3.5)
-    arel (4.0.1)
+    arel (4.0.2)
-    atomic (1.1.14)
     builder (3.1.4)
+    concurrent-ruby (1.1.5)
     erubis (2.7.0)
     faraday (0.8.8)
       multipart-post (~> 1.2.0)
@@ -44,7 +44,8 @@ GEM
     highline (1.6.20)
     hike (1.2.3)
     httpauth (0.2.0)
-    i18n (0.6.5)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jeweler (1.8.8)
       builder
       bundler (~> 1.0)
@@ -60,12 +61,12 @@ GEM
     kaminari (0.15.0)
       actionpack (>= 3.0.0)
       activesupport (>= 3.0.0)
-    mail (2.5.4)
+    mail (2.5.5)
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
     mime-types (1.25.1)
     minitest (4.7.5)
-    multi_json (1.8.2)
+    multi_json (1.14.0)
     multi_xml (0.5.5)
     multipart-post (1.2.0)
     nokogiri (1.5.10)
@@ -76,27 +77,27 @@ GEM
       multi_json (~> 1.0)
       multi_xml (~> 0.5)
       rack (~> 1.2)
-    polyglot (0.3.3)
+    polyglot (0.3.5)
-    rack (1.5.2)
+    rack (1.5.5)
-    rack-test (0.6.2)
+    rack-test (0.6.3)
       rack (>= 1.0)
-    rails (4.0.1)
+    rails (4.0.3)
-      actionmailer (= 4.0.1)
+      actionmailer (= 4.0.3)
-      actionpack (= 4.0.1)
+      actionpack (= 4.0.3)
-      activerecord (= 4.0.1)
+      activerecord (= 4.0.3)
-      activesupport (= 4.0.1)
+      activesupport (= 4.0.3)
       bundler (>= 1.3.0, < 2.0)
-      railties (= 4.0.1)
+      railties (= 4.0.3)
       sprockets-rails (~> 2.0.0)
-    railties (4.0.1)
+    railties (4.0.3)
-      actionpack (= 4.0.1)
+      actionpack (= 4.0.3)
-      activesupport (= 4.0.1)
+      activesupport (= 4.0.3)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rake (10.1.0)
+    rake (13.0.0)
     rdoc (4.0.1)
       json (~> 1.4)
-    sprockets (2.10.1)
+    sprockets (2.12.5)
       hike (~> 1.2)
       multi_json (~> 1.0)
       rack (~> 1.0)
@@ -105,14 +106,13 @@ GEM
       actionpack (>= 3.0)
       activesupport (>= 3.0)
       sprockets (~> 2.8)
-    thor (0.18.1)
+    thor (0.20.3)
-    thread_safe (0.1.3)
+    thread_safe (0.3.6)
-      atomic
     tilt (1.4.1)
     treetop (1.4.15)
       polyglot
       polyglot (>= 0.3.1)
-    tzinfo (0.3.38)
+    tzinfo (0.3.55)
 
 PLATFORMS
   ruby