Function runTask

pipeline.js:32–38

(args, task)

		// Self-optimizing function to run first task with multiple
		// args using apply, but subsequence tasks via direct invocation
		var runTask = function(args, task) {
			runTask = function(arg, task) {
				return task(arg);
			};

			return task.apply(null, args);
		};

		return all(slice.call(arguments, 1)).then(function(args) {
			return when.reduce(tasks, function(arg, task) {