Replaced inline copyright notice with #include "copyright.h"
Changes and check-in for 3.5 release Includes new source files and modifications not recorded for many years See ray/doc/notes/ReleaseNotes for notes between 3.1 and 3.5 release
added dependency on color.h to lamps.o for cie_rgb() macro
changed fropen() call to frlibopen()
added original xyY to end of color array
fixed bug for free() routines that touch contents
updated revision number for release 2.0
changed return value of loadlamps() to 0 if no lamps loaded
added freelamps()
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