Merge pull request #141 from DylanLacey/master

Fix trailing "end"
Remove at_exit call which is breaking exit statuses
Merge pull request #142 from DanielHeath/master

Remove at_exit call which is breaking rspec exit statuses

##TODO -- Actually fix this!
cap default concurrency, to prevent unlimited concurrency from launching unlimited threads. if you want more than 20, specify a parameter
use non-deprecated methods
respect SAUCE_BROWSER (etc) settings, when specified, over the browsers list
auto-detect build numbers from some popular ci systems that make it easy
test pulling build number from env
bugfix: test build number env var every time we test the env stuff
pass the concurrency parameter in properly, and multply tests by platform and re-split them into groups properly
Updating remote changes into my local branch

Merge branch 'master' of github.com:sauce-labs/sauce_ruby
deal with build env var being set when testing opts
yet another place we have to deal with this
Merge branch 'master' of github.com:sauce-labs/sauce_ruby
Add encrypted authentication details