allow autoreconf force Recombobulate slightly to allow full regeneration via the command $ autoreconf --force
- move src/microcode/aclocal.m4 to src/microcode/mit_scheme_native_code.m4
- use single shared directory for locally-defined macros (src/microcode/ for now)
The necessary local m4 macro file is explicitly included. This is necessary because autoconf is not using automake or libtools, so AC_CONFIG_MACRO_DIR([.../microcode]) won't work. Gulp.