Deprecate wavread and wavwrite. * NEWS: Announce deprecation and replacement functions. * scripts/deprecated/wavread.m, scripts/deprecated/wavwrite.m: Moved from scripts/audio. Add deprecation message to docstring. Add deprecation warning to m-file. * scripts/audio/module.mk: Remove from build system. * scripts/deprecated/module.mk: Add deprecated versions to build system. * audio.txi: Remove functions from manual.

geometryimages.m voronoi triplot griddata convhull delaunay inpolygon
interpimages.m interpft interpn interpderiv1 interpderiv2
plotimages.m plot hist errorbar polar mesh plot3 extended
sparseimages.m gplot grid spmatrix spchol spcholperm
splineimages.m splinefit1 splinefit2 splinefit3 splinefit4 splinefit6