Utility classes and functions.

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	Function	Description
	construct	This function is used to construct an object from the class and an array of parameters.

	Class	Description
	DisplayObjectUtils
	FastWeightedArray	A FastWeightedArray performes the same purpose as a WeightedArray but this array is optimized to select random items in a large array much more rapidly.
	FrameUpdater	This class is used to provide a constant tick event to update the emitters every frame.
	Maths	The Maths class contains a coupleof useful methods for use in maths functions.
	PriorityArray	A PriorityArray is a collection of values that are permanently sorted according to their priority.
	WeightedArray	A WeightedArray is a collection of values that are weighted.