Merge pull request #8 from hackreactor/rearrange2

trying to make specs a little more clear
Merge branch 'rearrange' of https://github.com/hackreactor/recursion into rearrange
tweaks
wording
Replaced cdn libs
Updated getElementsByClassNameSpec; uses jQuery & converts nodelist to array
specs now search for correct class
pass specs
delete unecessary line
add semicolon
remove global variable; only use recursion if necessary
finish stringifyJSON
Add a readme (automated commit)