Useful collections and utility classes.

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	Interface	Description
	Cloneable	Implemented by objects that support creating a clone.
	Comparable	Implemented by classes whose instances have a natural ordering with respect to each other.
	Equalable	Implemented by classes that can have separate instances indicate that they are equal.
	Hashable	Builds upon the Equalable interface to allow instances to be stored efficiently in Maps or Sets.
	LogTarget	A very simple Logging interface used by Log.
	Map	A Map is an object that maps keys to values.
	Set	A Set contains unique instances of objects.

	Class	Description
	ArrayUtil	Contains methods that should be in Array, but aren't.
	Assert	Simple implementation of assertion checks for debug environments.
	ByteEnum	An enum value that can be persisted as a byte.
	ClassUtil	Class related utility methods.
	Command	Contains a simple binding function to bind events to commands.
	CommandEvent
	Comparators	Contains sorting Comparators.
	ComparisonChain	A utility for performing a "lazy" chained comparison statement, which performs comparisons only until it finds a nonzero result.
	Config
	Controller
	DateUtil	Utility for dates.
	DelayUtil	A simple way to delay invocation of a function closure by one or more frames.
	Enum	Base enum class for actionscript.
	EventHandlerManager	A class for keeping track of event listeners and freeing them all at a given time.
	FileUtil
	Framerate
	ImmutableProxyObject	Acts like the passed-in Object, but prevents modifications.
	JavascriptLogTarget	Writes to the Javascript console in Web Inspector in Safari, Firebug in Firefox and IE 8's Developer Tools.
	Joiner
	LineSegment	Merely a typed container for two Points.
	Log	A simple logging mechanism.
	MailUtil	Utility methods relating to the electronic mails.
	MapProxyObject	Makes a Map behave like an object.
	Maps	Factory methods for creating various Maps.
	MathUtil	Collection of math utility functions.
	MultiLoader	Easy loader for many things, including managing multiple downloads.
	NamedValueEvent	A handy event for dispatching a name/value pair associated with the event type.
	NetUtil
	ObserverList
	ParameterUtil	A utility for loading parameters from an XML file when run from the local filesystem.
	Preconditions	Utility functions for checking function parameters and throwing appropriate errors.
	Predicates	Predicates suitable for Array.filter() and other needs.
	Random	A seedable pseudorandom generator of the Mersenne Twister variety, with an extremely long period.
	RandomUtil	Random Random utilities.
	RingBuffer
	Sets	Factory methods for creating Sets.
	StringUtil	Contains useful static function for performing operations on Strings.
	Throttle	A throttle is used to prevent code from attempting a particular operation too often.
	TimeBuffer	A data structure that keeps a list of objects, timestamped at the time they were added to the buffer.
	Util	Contains a variety of utility functions.
	ValueEvent	A handy event for simply dispatching a value associated with the event type.
	WeakReference	A weak reference.
	XmlReadError
	XmlUtil