Benchmarking script building my current project using the new `-j` feature in Bundler 1.4.0pre2 per http://robots.thoughtbot.com/post/59584648154/parallel-gem-installing-using-bundler

Benchmarking Bundler.sh

#!/bin/bash
for BIJOBS in 1 2 4
do
  export T1=`date`
  rm -rf Gemfile.lock vendor/cache/* vendor/ruby/*
  bundle install --jobs $BIJOBS --path vendor
  bundle package --all
  bundle install --binstubs
  echo Reporting start and end times for BIJOBS=$BIJOBS
  echo $T1
  date
  echo End of reporting this run
end