calc: C-style arbitrary precision system Files

The following are the major changes in this release and the previous release:

    Added a number of calc resource files by
    Christoph Zurnieden <czurnieden at gmx dot de> including:

    	bernpoly.cal - Computes the nth Bernoulli polynomial at z for any n,z
	brentsolve.cal - root-finder implementwed with the Brent-Dekker trick
	factorial.cal - product of the positive integers
	factorial2.cal - variety of integer functions quasi-related to factoral
	lambertw.cal - Computes Lambert's W-function at "z" at branch "branch"
	lnseries.cal - Calculates a series of natural logarithms at 1,2,3,4...n
	specialfunctions.cal - Calculates the value of the beta function
	statistics.cal - a wide vareity of stastical functions
	toomcook.cal - Multiply by way of the Toom-Cook algorithm
	zeta2.cal - Calculate the value of the Hurwitz Zeta function

    Fixed a makefile bug that prevented the those new calc resource
    files from being installed.

    With the exception of 3 source files, we became "picky" about
    line lengths and other issues reported by the picky tool:

    	cal/test8900.cal
	cal/set8700.line
	help/errorcodes.sed

    The above 3 files now pass picky -w (OK except for line length).
    For more information about the picky tool, see:

	http://cis.csuohio.edu/~somos/picky.html