updated python 2 vs 3 (fixes #48)

it’s 2014.
1. this is the quote on the linked page. i think the quote it replaces is an old citation of that page.
2. [legacy](http://www.merriam-webster.com/dictionary/legacy) means “of, relating to, or being a previous or outdated computer system”, which is an apt description of a still-maintained, yet feature-frozen version of a program.