gimme backtraces, travis

lib/tasks/rspec.rake

@@ -20,7 +20,9 @@ begin
   end
 
   desc "Run all specs in spec directory"
-  RSpec::Core::RakeTask.new(:spec => spec_prereq)
+  RSpec::Core::RakeTask.new(:spec => spec_prereq) do |t|
+    t.rspec_opts = ['-b'] 
+  end
 
   desc "Run all specs that generate fixtures for rspec or jasmine"
   RSpec::Core::RakeTask.new(:generate_fixtures => spec_prereq) do |t|