make sure we have the latest bundler installed for all rvm versions
make sure we have the latest bundler installed for all rvm versions

- gemspec wants newer versions than would be installed
- I can't seem to find a way to make rvm do this, doing it through ansible
  is insanely messy since we'd have to manually make sure env etc is set
  up
- needs sudo because ansible's rvm thingy doesn't make sure everything is
  group writable

net-ssh/net-ssh