diff --git a/Gemfile.lock b/Gemfile.lock
index 2608cc7..a37c076 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -10,20 +10,20 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    actionpack (4.2.5.1)
-      actionview (= 4.2.5.1)
-      activesupport (= 4.2.5.1)
+    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 (4.2.5.1)
-      activesupport (= 4.2.5.1)
+    actionview (4.2.6)
+      activesupport (= 4.2.6)
       builder (~> 3.1)
       erubis (~> 2.7.0)
       rails-dom-testing (~> 1.0, >= 1.0.5)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    activesupport (4.2.5.1)
+    activesupport (4.2.6)
       i18n (~> 0.7)
       json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
@@ -34,30 +34,25 @@ GEM
       rake
       thor (>= 0.14.0)
     builder (3.2.2)
-    coveralls (0.8.10)
+    coveralls (0.8.13)
       json (~> 1.8)
-      rest-client (>= 1.6.8, < 2)
       simplecov (~> 0.11.0)
       term-ansicolor (~> 1.3)
       thor (~> 0.19.1)
       tins (~> 1.6.0)
     diff-lcs (1.2.5)
     docile (1.1.5)
-    domain_name (0.5.25)
-      unf (>= 0.0.5, < 1.0.0)
     erubis (2.7.0)
-    http-cookie (1.0.2)
-      domain_name (~> 0.5)
     i18n (0.7.0)
     json (1.8.3)
     loofah (2.0.3)
       nokogiri (>= 1.5.9)
-    mime-types (2.99)
-    mini_portile2 (2.0.0)
-    minitest (5.8.4)
-    netrc (0.11.0)
-    nokogiri (1.6.7.2)
-      mini_portile2 (~> 2.0.0.rc2)
+    mini_portile2 (2.1.0)
+    minitest (5.9.0)
+    nokogiri (1.6.8)
+      mini_portile2 (~> 2.1.0)
+      pkg-config (~> 1.1.7)
+    pkg-config (1.1.7)
     rack (1.6.4)
     rack-test (0.6.3)
       rack (>= 1.0)
@@ -69,21 +64,17 @@ GEM
       rails-deprecated_sanitizer (>= 1.0.1)
     rails-html-sanitizer (1.0.3)
       loofah (~> 2.0)
-    railties (4.2.5.1)
-      actionpack (= 4.2.5.1)
-      activesupport (= 4.2.5.1)
+    railties (4.2.6)
+      actionpack (= 4.2.6)
+      activesupport (= 4.2.6)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rake (10.5.0)
-    rest-client (1.8.0)
-      http-cookie (>= 1.0.2, < 2.0)
-      mime-types (>= 1.16, < 3.0)
-      netrc (~> 0.7)
+    rake (11.2.2)
     rspec (3.4.0)
       rspec-core (~> 3.4.0)
       rspec-expectations (~> 3.4.0)
       rspec-mocks (~> 3.4.0)
-    rspec-core (3.4.2)
+    rspec-core (3.4.4)
       rspec-support (~> 3.4.0)
     rspec-expectations (3.4.0)
       diff-lcs (>= 1.2.0, < 2.0)
@@ -91,7 +82,7 @@ GEM
     rspec-mocks (3.4.1)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.4.0)
-    rspec-rails (3.4.1)
+    rspec-rails (3.4.2)
       actionpack (>= 3.0, < 4.3)
       activesupport (>= 3.0, < 4.3)
       railties (>= 3.0, < 4.3)
@@ -100,7 +91,7 @@ GEM
       rspec-mocks (~> 3.4.0)
       rspec-support (~> 3.4.0)
     rspec-support (3.4.1)
-    simplecov (0.11.1)
+    simplecov (0.11.2)
       docile (~> 1.1.0)
       json (~> 1.8)
       simplecov-html (~> 0.10.0)
@@ -112,9 +103,6 @@ GEM
     tins (1.6.0)
     tzinfo (1.2.2)
       thread_safe (~> 0.1)
-    unf (0.1.4)
-      unf_ext
-    unf_ext (0.0.7.1)
 
 PLATFORMS
   ruby
@@ -128,4 +116,4 @@ DEPENDENCIES
   versioncake!
 
 BUNDLED WITH
-   1.10.6
+   1.12.5