more changes
	modified:   eZHelloWorld/dist/eZHelloWorld.jar
	deleted:    eZHelloWorld/src/CircleSketch.java
	modified:   eZHelloWorld/src/Study/Theorem/Pythagorean/PythTheoremApplet.java
	modified:   eZHelloWorld/src/Study/Theorem/Pythagorean/PythTheoremFrame.java
	modified:   eZHelloWorld/src/Study/Theorem/Pythagorean/PythTheoremSketch.java
	new file:   eZHelloWorld/src/eZLib/Equation.java