some changes
	modified:   eZLib/nbproject/project.properties
	modified:   eZLib/src/eZLib/EulerAngles.java
	modified:   eZLib/src/eZLib/SphericalVector.java
	modified:   eZLib/src/eZLib/Study/SolarSystem/SunSysSketch.java
	modified:   eZLib/src/eZLib/Study/VectorSketch.java
	modified:   eZLib/src/eZLib/Vector.java
	modified:   eZLib/test/eZLib/VectorTest.java