Revert "bump travis-core"

This reverts commit c90b1a8.

Gemfile.lock

@@ -15,7 +15,7 @@ GIT
 
 GIT
   remote: git://github.com/travis-ci/travis-core.git
-  revision: d10cc32d6bbc756ed73e3e3fa3bbcf6c6f3c64d7
+  revision: 57c1019d26dda5d2c12a164e5d70d9280271d806
   specs:
     travis-core (0.0.1)
       actionmailer (~> 3.2.12)
@@ -87,6 +87,7 @@ GEM
       multi_json (~> 1.0)
     addressable (2.3.3)
     arel (3.0.2)
+    atomic (1.0.1)
     atomic (1.0.1-java)
     avl_tree (1.1.3)
     aws-sdk (1.8.1.2)
@@ -129,13 +130,15 @@ GEM
       guard (>= 1.1)
     hashr (0.0.22)
     hike (1.2.1)
-    hitimes (1.2.1-java)
+    hitimes (1.2.0)
+    hitimes (1.2.0-java)
     hot_bunnies (1.3.8-java)
     i18n (0.6.4)
     jdbc-postgres (9.1.901)
     journey (1.0.4)
     jruby-openssl (0.7.7)
       bouncy-castle-java (>= 1.5.0146.1)
+    json (1.7.7)
     json (1.7.7-java)
     listen (0.7.2)
     lumberjack (1.0.2)
@@ -231,7 +234,7 @@ GEM
     treetop (1.4.12)
       polyglot
       polyglot (>= 0.3.1)
-    tzinfo (0.3.37)
+    tzinfo (0.3.36)
     uuidtools (2.1.3)
     webmock (1.8.11)
       addressable (>= 2.2.7)