Bump travis-core

Gemfile.lock

@@ -23,7 +23,7 @@ GIT
 
 GIT
   remote: git://github.com/travis-ci/travis-core.git
-  revision: bb1b9584dfd970fb6ab1d6b6b3efbbacc51e1970
+  revision: e9e0b02da4c63a2cc0846275df1a819944e9311a
   branch: ps-settings-encryption
   specs:
     travis-core (0.0.1)
@@ -111,9 +111,9 @@ GEM
     activesupport (3.2.17)
       i18n (~> 0.6, >= 0.6.4)
       multi_json (~> 1.0)
-    addressable (2.3.5)
+    addressable (2.3.6)
     arel (3.0.3)
-    atomic (1.1.15)
+    atomic (1.1.16)
     avl_tree (1.1.3)
     backports (2.8.2)
     builder (3.0.4)
@@ -179,7 +179,7 @@ GEM
     mime-types (1.25.1)
     mocha (0.14.0)
       metaclass (~> 0.0.1)
-    multi_json (1.9.0)
+    multi_json (1.9.2)
     multipart-post (2.0.0)
     net-http-persistent (2.9.4)
     net-http-pipeline (1.0.1)
@@ -201,7 +201,7 @@ GEM
       rack (>= 0.4)
     rack-protection (1.5.1)
       rack
-    rack-ssl (1.3.3)
+    rack-ssl (1.3.4)
       rack
     rack-test (0.6.2)
       rack (>= 1.0)
@@ -270,8 +270,7 @@ GEM
       eventmachine (>= 1.0.0)
       rack (>= 1.0.0)
     thor (0.14.6)
-    thread_safe (0.3.1)
-      atomic (>= 1.1.7, < 2)
+    thread_safe (0.3.3)
     tilt (1.4.1)
     timers (1.1.0)
     treetop (1.4.15)