Selenium errors don't abort rake task to return fail status

[Sebastián Arcila Valenzuela]

Hi Guys

I'm having the following errors https://gist.github.com/959566 after
run `rake spec` in my rails application, in the CI server (headless
box), and when I check the return status of `rake spec` with `echo $?`
it gives me 0 instead of 1 as an error code, I need to check the
return code of rake task before deploy to production.

I'm using rails 3.0.6 with selenium-webdriver 0.1.4 and rspec 2.5.0,
and CIJoe for CI


Thanks--
Sebastian