Revert gemfile changes

Gemfile.lock

@@ -111,7 +111,7 @@ GEM
       sass (>= 3.2, < 3.5)
     concurrent-ruby (1.0.5)
     crass (1.0.4)
-    daemons (1.2.6)
+    daemons (1.2.4)
     db-query-matchers (0.4.0)
     dbf (2.0.6)
       fastercsv (~> 1.5.4)
@@ -230,7 +230,7 @@ GEM
     power_assert (0.2.7)
     protected_attributes (1.1.3)
       activemodel (>= 4.0.1, < 5.0)
-    rack (1.6.11)
+    rack (1.6.10)
     rack-protection (1.5.5)
       rack
     rack-test (0.6.3)
@@ -365,10 +365,10 @@ GEM
     statsd-client (0.0.7)
     test-unit (3.1.7)
       power_assert
-    thin (1.7.2)
+    thin (1.7.0)
       daemons (~> 1.0, >= 1.0.9)
       eventmachine (~> 1.0, >= 1.0.4)
-      rack (>= 1, < 3)
+      rack (~> 1.0)
     thor (0.20.0)
     thread_safe (0.3.6)
     tilt (2.0.6)