some changes
	modified:   eZLib/nbproject/configs/Study.Diff.properties
	modified:   eZLib/nbproject/configs/Study.IncExc.properties
	modified:   eZLib/nbproject/configs/Study.Noise.properties
	modified:   eZLib/nbproject/configs/Study.Theorem.Pythagorean.properties
	modified:   eZLib/nbproject/configs/TestArrow.properties
	modified:   eZLib/nbproject/configs/TestGrid.properties
	modified:   eZLib/nbproject/configs/TestText.properties
	modified:   eZLib/nbproject/project.properties
	deleted:    eZLib/src/Study/Diff/DiffApplet.java
	deleted:    eZLib/src/Study/Diff/DiffFrame.java
	deleted:    eZLib/src/Study/InclusionExclusion/IncExcApplet.java
	deleted:    eZLib/src/Study/InclusionExclusion/IncExcFrame.java
	deleted:    eZLib/src/Study/Noise/NoiseApplet.java
	deleted:    eZLib/src/Study/Noise/NoiseFrame.java
	deleted:    eZLib/src/Study/Theorem/Pythagorean/PythTheoremApplet.java
	deleted:    eZLib/src/Study/Theorem/Pythagorean/PythTheoremFrame.java
	modified:   eZLib/src/eZLib/MainFrame.java
	modified:   eZLib/src/eZLib/Sketch.java
	deleted:    eZLib/src/eZLib/Test/Arrow/TestArrowApplet.java
	deleted:    eZLib/src/eZLib/Test/Arrow/TestArrowFrame.java
	deleted:    eZLib/src/eZLib/Test/Grid/TestGridApplet.java
	deleted:    eZLib/src/eZLib/Test/Grid/TestGridFrame.java
	deleted:    eZLib/src/eZLib/Test/Latex/TestLatexApplet.java
	deleted:    eZLib/src/eZLib/Test/Latex/TestLatexFrame.java
	deleted:    eZLib/src/eZLib/Test/Text/TestTextApplet.java
	deleted:    eZLib/src/eZLib/Test/Text/TestTextFrame.java
	renamed:    eZLib/src/eZLib/Test/Arrow/TestArrowSketch.java -> eZLib/src/eZLib/Testing/TestArrowSketch.java
	renamed:    eZLib/src/eZLib/Test/Grid/TestGridSketch.java -> eZLib/src/eZLib/Testing/TestGridSketch.java
	renamed:    eZLib/src/eZLib/Test/Latex/TestLatexSketch.java -> eZLib/src/eZLib/Testing/TestLatexSketch.java
	renamed:    eZLib/src/eZLib/Test/Text/TestTextSketch.java -> eZLib/src/eZLib/Testing/TestTextSketch.java
	renamed:    eZLib/src/Study/Diff/DiffSketch.java -> eZLib/src/sZLib/Study/DiffSketch.java
	renamed:    eZLib/src/Study/InclusionExclusion/IncExcSketch.java -> eZLib/src/sZLib/Study/IncExcSketch.java
	renamed:    eZLib/src/Study/Noise/NoiseSketch.java -> eZLib/src/sZLib/Study/NoiseSketch.java
	renamed:    eZLib/src/Study/Theorem/Pythagorean/PythTheoremSketch.java -> eZLib/src/sZLib/Study/PythTheoremSketch.java
	new file:   undo.cmd