mlhDevelopment

var Mutex = function() {
  var queues = [];
  var locked = false;
  
  this.isLocked = function() {
    return locked;
  };
  // It was about this point where I realized I didn't really want a mutex. I wanted a lock check......
  this.push = function(callback) {
    var self = this;

mlhDevelopment

# Rotates a vertical set similar to an Excel PivotTable 
# 
# Given $data in the format: 
# 
# Category     Activity     Duration 
# ------------ ------------ -------- 
# Management   Email        1 
# Management   Slides       4 
# Project A    Email        2 
# Project A    Research     1