WIP on trying to get unit tests to run in CI

Reference:
https://github.com/sgleadow/xcodetest
http://longweekendmobile.com/2011/04/17/xcode4-running-application-tests-from-the-command-line-in-ios/
http://stackoverflow.com/questions/5403991/xcode-4-run-tests-from-the-command-line-xcodebuild/10823483#10823483
http://stackoverflow.com/questions/12557935/xcode-4-5-command-line-unit-testing/12682617#12682617
https://gist.github.com/mbinna/4492087
http://9elements.com/io/index.php/continuous-integration-of-ios-projects-using-jenkins-cocoapods-and-kiwi/