Overhaul savepath.m, pathdef.m, matlabroot.m. Fix pathdef which has been broken since at least 3.2.4 (nobody noticed). Use project specific .octaverc for savepath, pathdef before other choices. * matlabroot.m: Remove stray extra newline before start of BIST tests. * scripts/path/module.mk: Add getsavepath.m to build system * scripts/path/private/getsavepath.m: New function abstracts common code used by both pathdef and savepath to read an rc file. * pathdef.m: Redo docstring. Validate number of input arguments. Look for project-specific .octaverc file ahead of other rc files. Use private function getsavepath to read in rc file. Return pathsep() separated list of directories (this was broken). Add one lame BIST test. * savepath.m: Redo docstring. Use project-specific .octaverc if it exists. Use private function getsavepath to read in rc file. Replace for loops around fprintf with single calls to fprintf and a comma-separated-list of arguments. Use Octave syntax, rather than for loops, to convert cell array of structs to cellstr of a single struct field value. Turn off backtrace warning temporarily when alerting the user about where the savepath information has been saved. Use ostrsplit and strcat rather than regexpi for performance. Add BIST test.