Welcome to the Jython Environment for Students (JES), Version 3.1! We have made several changes since our last release, so take a look around. Some of these changes were implemented thanks to work done at Kalamazoo College. All changes in this version are listed below.

Environment
	--JES now runs using the latest version of Jython, version 2.2.1, which comes included with JES.
	--JES also comes packaged with the latest Java JRE.
	--The homework assignment turn-in tool has been removed.
	--Redo functionality has been added to the program area to go along with Undo.
	--"true" and "false" constants have been added.
	--Color value wrap-around is now an option available under Edit-->Options. When turned on, RGB values outside the 0-255 range will be wrapped around using modulus division. When turned off, RGB values will be capped at 0 and 255.
	--Also available under Edit-->Options is a backup save function. When selected, JES will save a duplicate file in the same folder with the extension ".pybak".

Input/Output
	--Python input() and raw_input() now present users with dialog boxes for input.
	--Unicode can no longer be created and printed simply by using "\u". The following code no longer works:
		>>> unicodeString = u"\u0061\u0062"
		>>> print unicodeString
		ab

		Instead use the following:
		>>> unicodeString = u"\u0061\u0062"
		>>> encodedString = unicodeString.encode('utf-8') #or some other codec
		>>> print encodedString
		ab
		
		This is a Python change, not a JES change.

Files
	--setMediaPath() and setMediaFolder() can now take a directory path as input. The old functionality of sending no arguments and getting a file chooser still works.
	--Using getMediaPath() or getMediaFolder() with no arguments now returns the current media folder.
	--The new method setLibPath() adds a folder to the user's Python path, so that user-created modules can be imported. Like setMediaPath() and setMediaFolder(), this method works with no arguments or with a directory path as input.

Pictures
	--There are four new methods for adding shapes to pictures: addArc(), addArcFilled(), addOval(), addOvalFilled()
	
	--Several methods now take a Color as an optional parameter. These include:	
		addLine()
		addRect()
		addRectFilled()
		addText()
		addTextWithStyle()
		makeEmptyPicture()
	as well as the new methods listed above.
	--show() now repaints automatically.
	--getPixelAt() is a new method with the same functionality as getPixel()
	--The color setting methods (setRed(), setGreen(), setBlue()) now perform error checking if the Color Wraparound option is deselected.
	--The Color Wraparound option can be temporarily activated or deactivated within a program using setColorWrapAround() and getColorWrapAround().
	--Color objects can now be added and subtracted. This is done by summing RGB values. RGB values outside 0-255 are handled by the Color Wraparound option.
	--crop() and a more sophisticated copyInto() are available when using Object-Oriented notation.	These methods are not listed in the JES Functions menu.
	--The new explore() method will take a Picture object and open up the Picture Tool.

Sounds
	--makeEmptySound() now takes a number of samples instead of a number of seconds. To create a sound in terms of seconds, use the new method makeEmptySoundBySeconds(). In addition, both	methods optionally take a sampling rate as a parameter along with the duration.
	--getSample() and setSample have been replaced by getSampleValue() and setSampleValue().
	--getNumSamples() is a new method that returns the number of samples in a sound, same as getLength().
	--getDuration() is a new method that returns the length of the sound in seconds.
	--stopPlaying() is a new method that forces a sound to cease playback.
	--The new explore() method will take a Sound object and open up the Sound Tool.
	--copySoundInto() and cropSound() are available when using Object-Oriented notation only. These methods	are not listed in the JES Functions menu.
	--The following six methods have been declared deprecated. Their functionality still exists within JES,	but there is no further reference to them in our help files and documentation:
	playAtRate(), playAtRateDur(), playInRange(), blockingPlayInRange(), playAtRateInRange(), blockingPlayAtRateInRange()

Movies
	--The new explore() method will take a Movie object and open up the Frame Sequencer Tool.
	--There is a new method for writing out movies. writeQuicktime() will write out movies in the MOV format.

Turtles
	--turnToFace() can now take a turtle as input rather than (x,y) coordinates.
	--turn() now takes a floating point number rather than an integer as input.
	--New method getHeading() now returns the heading of the turtle in degrees.

Debugging
	--The ability to pause and step through code using the Watcher has been disabled.
	--The method showVars() has been reintroduced. When called, a new window will appear, showing the value and type of any variable available in the command area.