Added more accurate Michalsky solar position calculation and made correction to old IES handbook formula (thanks to Axel Jacobs)
Added header file for solar position calculations
Added Jean-Jacques Delaunay's gendaylit program to distribution
Continued ANSIfication and reduced other compile warnings.
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
Removed problematic math function declarations
updated revision number for release 2.0
fixed location of SCCSid
Initial revision
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