Update deps.

Gemfile.lock

@@ -17,52 +17,52 @@ GEM
   remote: https://rubygems.org/
   specs:
     RedCloth (4.2.9)
-    activesupport (4.0.0)
+    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)
-    atomic (1.1.14)
+    atomic (1.1.15)
     awesome_print (1.2.0)
     builder (3.2.2)
-    coderay (1.0.9)
-    diff-lcs (1.2.4)
+    coderay (1.1.0)
+    diff-lcs (1.2.5)
     eeepub-with-cover-support (0.8.8)
       builder
       rubyzip
-    i18n (0.6.5)
+    i18n (0.6.9)
     method_source (0.8.2)
-    mini_portile (0.5.1)
+    mini_portile (0.5.2)
     minitest (4.7.5)
-    multi_json (1.8.2)
-    nokogiri (1.6.0)
+    multi_json (1.9.0)
+    nokogiri (1.6.1)
       mini_portile (~> 0.5.0)
     notifier (0.4.1)
-    pry (0.9.12.2)
-      coderay (~> 1.0.5)
+    pry (0.9.12.6)
+      coderay (~> 1.0)
       method_source (~> 0.8)
       slop (~> 3.4)
     pry-nav (0.2.3)
       pry (~> 0.9.10)
-    rake (10.1.0)
+    rake (10.1.1)
     rdiscount (2.1.7)
     rspec (2.14.1)
       rspec-core (~> 2.14.0)
       rspec-expectations (~> 2.14.0)
       rspec-mocks (~> 2.14.0)
-    rspec-core (2.14.5)
-    rspec-expectations (2.14.3)
+    rspec-core (2.14.8)
+    rspec-expectations (2.14.5)
       diff-lcs (>= 1.1.3, < 2.0)
-    rspec-mocks (2.14.3)
+    rspec-mocks (2.14.6)
     rubyzip (0.9.9)
-    slop (3.4.6)
+    slop (3.4.7)
     test_notifier (1.0.1)
       notifier
     thor (0.18.1)
-    thread_safe (0.1.3)
-      atomic
-    tzinfo (0.3.38)
+    thread_safe (0.2.0)
+      atomic (>= 1.1.7, < 2)
+    tzinfo (0.3.39)
 
 PLATFORMS
   ruby