bump rails

Gemfile

 source 'https://rubygems.org'
 source 'https://rails-assets.org'
 
-gem 'rails', '4.1.5'
+gem 'rails', '4.1.6'
 
 # Legacy Rails features, remove me!
 

Gemfile.lock

@@ -2,29 +2,29 @@ GEM
   remote: https://rubygems.org/
   remote: https://rails-assets.org/
   specs:
-    actionmailer (4.1.5)
-      actionpack (= 4.1.5)
-      actionview (= 4.1.5)
-      mail (~> 2.5.4)
-    actionpack (4.1.5)
-      actionview (= 4.1.5)
-      activesupport (= 4.1.5)
+    actionmailer (4.1.6)
+      actionpack (= 4.1.6)
+      actionview (= 4.1.6)
+      mail (~> 2.5, >= 2.5.4)
+    actionpack (4.1.6)
+      actionview (= 4.1.6)
+      activesupport (= 4.1.6)
       rack (~> 1.5.2)
       rack-test (~> 0.6.2)
     actionpack-action_caching (1.1.1)
       actionpack (>= 4.0.0, < 5.0)
     actionpack-page_caching (1.0.2)
       actionpack (>= 4.0.0, < 5)
-    actionview (4.1.5)
-      activesupport (= 4.1.5)
+    actionview (4.1.6)
+      activesupport (= 4.1.6)
       builder (~> 3.1)
       erubis (~> 2.7.0)
-    activemodel (4.1.5)
-      activesupport (= 4.1.5)
+    activemodel (4.1.6)
+      activesupport (= 4.1.6)
       builder (~> 3.1)
-    activerecord (4.1.5)
-      activemodel (= 4.1.5)
-      activesupport (= 4.1.5)
+    activerecord (4.1.6)
+      activemodel (= 4.1.6)
+      activesupport (= 4.1.6)
       arel (~> 5.0.0)
     activerecord-import (0.5.0)
       activerecord (>= 3.0)
@@ -32,7 +32,7 @@ GEM
       activemodel (~> 4.0)
       activesupport (~> 4.0)
       rails-observers (~> 0.1.1)
-    activesupport (4.1.5)
+    activesupport (4.1.6)
       i18n (~> 0.6, >= 0.6.9)
       json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
@@ -254,9 +254,8 @@ GEM
     lumberjack (1.0.9)
     macaddr (1.7.1)
       systemu (~> 2.6.2)
-    mail (2.5.4)
-      mime-types (~> 1.16)
-      treetop (~> 1.4.8)
+    mail (2.6.1)
+      mime-types (>= 1.16, < 3)
     markerb (1.0.2)
       redcarpet (>= 2.0)
     messagebus_ruby_api (1.0.3)
@@ -312,7 +311,6 @@ GEM
       nokogiri
     orm_adapter (0.5.0)
     phantomjs (1.9.7.1)
-    polyglot (0.3.5)
     pry (0.10.1)
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
@@ -335,15 +333,15 @@ GEM
       rack
     rack-test (0.6.2)
       rack (>= 1.0)
-    rails (4.1.5)
-      actionmailer (= 4.1.5)
-      actionpack (= 4.1.5)
-      actionview (= 4.1.5)
-      activemodel (= 4.1.5)
-      activerecord (= 4.1.5)
-      activesupport (= 4.1.5)
+    rails (4.1.6)
+      actionmailer (= 4.1.6)
+      actionpack (= 4.1.6)
+      actionview (= 4.1.6)
+      activemodel (= 4.1.6)
+      activerecord (= 4.1.6)
+      activesupport (= 4.1.6)
       bundler (>= 1.3.0, < 2.0)
-      railties (= 4.1.5)
+      railties (= 4.1.6)
       sprockets-rails (~> 2.0)
     rails-assets-jquery (1.11.1)
     rails-assets-perfect-scrollbar (0.4.11)
@@ -372,9 +370,9 @@ GEM
       sass-rails (~> 4.0)
     rails_autolink (1.1.6)
       rails (> 3.1)
-    railties (4.1.5)
-      actionpack (= 4.1.5)
-      activesupport (= 4.1.5)
+    railties (4.1.6)
+      actionpack (= 4.1.6)
+      activesupport (= 4.1.6)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     raindrops (0.13.0)
@@ -464,9 +462,6 @@ GEM
     timecop (0.7.1)
     timers (4.0.0)
       hitimes
-    treetop (1.4.15)
-      polyglot
-      polyglot (>= 0.3.1)
     twitter (4.8.1)
       faraday (~> 0.8, < 0.10)
       multi_json (~> 1.0)
@@ -560,7 +555,7 @@ DEPENDENCIES
   rack-protection (= 1.2)
   rack-rewrite (= 1.5.0)
   rack-ssl (= 1.4.1)
-  rails (= 4.1.5)
+  rails (= 4.1.6)
   rails-assets-jquery (= 1.11.1)
   rails-assets-perfect-scrollbar (= 0.4.11)
   rails-i18n (= 4.0.3)