Update math/maxima to 5.14.0

Based on patches from Aleksej Saushev in PR 37682

Changes:
-  backwards-incompatible changes:
* Maxima strings are now Lisp strings (not Lisp symbols)
* Change name of quotient operator from "//" to "/"
* Regularize return values of dgeev and dgesvd in lapack

-  New items in share:
* share/contrib/gf: Galois fields
* share/contrib/fourier_elim: solve inequalities via Fourier elimination
* share/contrib/fresnel: Fresnel integrals
* share/contrib/unwind_protect: programming construct to catch errors
* share/draw/implicit3d: implicit surfaces by the marching cubes algorithm

-  Other revisions:
* Bigfloat %pi via Chudnovsky series and %e via modified Taylor series
* share/contrib/sarag: new version
* share/contrib/ezunits: units conversion capability
* share/contrib/numericalio: partial reads, binary float input
* share/matrix/eigen.mac: gramschmidt accepts optional inner product
* share/numeric/romberg: evaluate arguments as an ordinary function
* share/draw: enhancements
* Bug fixes and updates in differential equations
* share/tensor/ctensor: nonsymmetric metrics
* Minor bug fixes in TeX output
* Minor enhancements in Maxima->Lisp translation
* Category system in English-language html documentation
* Additional documentation
* Russian translation of reference manual in progress
* Various unnumbered bug fixes

- Many bugfixes

doc/CHANGES-2008

@@ -1,4 +1,4 @@
-$NetBSD: CHANGES-2008,v 1.14 2008/01/03 19:11:34 seb Exp $
+$NetBSD: CHANGES-2008,v 1.15 2008/01/03 20:26:09 tonio Exp $
 
 Changes to the packages collection and infrastructure in 2008:
 
@@ -18,3 +18,4 @@ Changes to the packages collection and infrastructure in 2008:
 	Updated geography/postgresql81-postgis to 1.3.2 [gdt 2008-01-03]
 	Added pkgtools/lintpkgsrc version 4.82 [rillig 2008-01-03]
 	Updated net/net-snmp to 5.4.1nb1 [seb 2008-01-03]
+	Updated math/maxima to 5.14.0 [tonio 2008-01-03]