Originally posted as an answer[1] at StackOverflow, which was too long[2] and become a blog post. [1]: http://stackoverflow.com/a/34828465/2751621 http://stack

Originally posted as an answer[1] at StackOverflow, which was too long[2] and become a blog post. [1]: http://stackoverflow.com/a/34828465/2751621 http://stackoverflow.com/a/34828465/2751621 [2]: http://meta.stackoverflow.com/q/316012/2751621 http://meta.stackoverflow.com/q/316012/2751621