New release (v0.8.9rc5)

["Andrew D. Hwang" <ahwang@mathcs.holycross.edu>]

There are lots of entries in the CHANGELOG, but the big change is that
angle unit modes (radians, degrees, or revolutions) have finally been
implemented, and arcs, ellipses, and polar plots behave accordingly
(barring bugs I missed). Thus, for example, the angle in polar plots is no
longer measured in revolutions (unless explicitly requested), and rotation
angles of half-ellipses are not in degrees (again, unless requested).

There are nine trig and inverse trig functions that are sensitive to angle
mode: sin, cos, tan and their inverses, and sec, csc, and cot. It is
necessary to call trig functions with an explicit scope resolution, e.g.
ePiX::cos. Since ePiX::cos = std::cos in radians mode, std::cos need never
appear in an input file, and it seemed safe to overload the names even
though the compiler can't distinguish these functions by their calling
syntax.

The tutorial and samples should be up to date, and there's a new
shadeplot example.

--Andy

Andrew D. Hwang			ahwang at mathcs dot holycross dot edu
Department of Math and CS	http://mathcs.holycross.edu/~ahwang
College of the Holy Cross	(508) 793-2458 (Office: 320 Swords)
Worcester, MA, 01610-2395	(508) 793-3530 (fax)