0.1-pre1  07.12.2001 18:34
	x implementation of SGP
	x values a little incorrect

0.1-pre2  08.12.2001 12:40
	x added implementation of SGP4 and SDP4
	x values a little incorrect, too

0.1-pre3  08.12.2001 15:15
	x added implementation of SGP8 and SDP8
	x values a little incorrect, too :-(
	x some small bugfixes

0.1-pre4  08.12.2001 17:00
	x new testing routine
	x CK2, CK4 and XJ3 globally defined
 	x new headers
	x new includes

0.1-pre5  09.12.2001 00:55  
	x removed compiler warnings (unused variables)
	x added Magnitude - definition to sgp_int.h
	x corrected sgp_conv - healed SGP, SGP4, SGP8 :-))

0.1-pre6  09.12.2001 14:45
	x xnode is now transferred and changed by sgp_deep / dpper
	x Julian_Date_of_Year now returns the correct value (.5 difference)
	x added Julian_Date_of_Epoch
	x added new interface function sgp

