build.rb in travis-1.6.15.travis.559.6

- old
+ new

@@ -18,9 +18,15 @@
 
       one :build
       many :builds
       aka :branch, :branches
 
+      def delete_logs(reason = {})
+        jobs.each do |job|
+          job.delete_log(reason)
+        end
+      end
+
       def push?
         not pull_request?
       end
 
       def branch_info