diff --git a/.ruby-version b/.ruby-version
new file mode 100644
index 0000000..3e3c2f1
--- /dev/null
+++ b/.ruby-version
@@ -0,0 +1 @@
+2.1.1
diff --git a/Gemfile b/Gemfile
index f83a451..92e92a8 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
-gem 'rails', '4.1.5'
+gem 'rails', '4.1.6'
 gem 'sqlite3'
 gem 'sass-rails', '~> 4.0.3'
 gem 'uglifier', '>= 1.3.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 04f8ee1..066884b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,27 +1,27 @@
 GEM
   remote: https://rubygems.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)
-    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)
-    activesupport (4.1.5)
+    activesupport (4.1.6)
       i18n (~> 0.6, >= 0.6.9)
       json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
@@ -47,29 +47,27 @@ GEM
       railties (>= 3.0, < 5.0)
       thor (>= 0.14, < 2.0)
     json (1.8.1)
-    mail (2.5.4)
-      mime-types (~> 1.16)
-      treetop (~> 1.4.8)
-    mime-types (1.25.1)
+    mail (2.6.1)
+      mime-types (>= 1.16, < 3)
+    mime-types (2.3)
     minitest (5.4.2)
     multi_json (1.10.1)
-    polyglot (0.3.5)
     rack (1.5.2)
     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)
-    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)
     rake (10.3.2)
@@ -98,9 +96,6 @@ GEM
     thor (0.19.1)
     thread_safe (0.3.4)
     tilt (1.4.1)
-    treetop (1.4.15)
-      polyglot
-      polyglot (>= 0.3.1)
     turbolinks (2.3.0)
       coffee-rails
     tzinfo (1.2.2)
@@ -116,7 +111,7 @@ DEPENDENCIES
   coffee-rails (~> 4.0.0)
   jbuilder (~> 2.0)
   jquery-rails
-  rails (= 4.1.5)
+  rails (= 4.1.6)
   sass-rails (~> 4.0.3)
   sdoc (~> 0.4.0)
   spring