Merge pull request #189 from cheister/master

update rack to 1.6.0

Author: headius

Gemfile.lock

@@ -5,7 +5,7 @@ GEM
       bundler
       rake
     diff-lcs (1.2.5)
-    rack (1.5.2)
+    rack (1.6.0)
     rake (10.3.2)
     rspec (2.14.1)
       rspec-core (~> 2.14.0)