Initial commit of mean/median/mode script
Switch to an array, not an object, for the counter
Tidy up some style:
* Return from mode() with a one-line ternary
* At start of execution, return false (exit script) if the input is bad; otherwise, the rest of script executes at root level
(Thanks, @toastynerd!)
Merge branch 'master' into numbers
Merge pull request #1 from david-davidson/numbers

Initial commit of mean/median/mode script