rename some build scripts for consistency and move them to where they are used * libgui/mk-default-qt-settings.in.sh: Rename from build-aux/mk-default-qt-settings.in.sh. * libinterp/mk-doc.pl: Rename from libinterp/gendoc.pl. * libinterp/operators/mk-ops.sh: Rename from libinterp/mkops. * scripts/mk-doc.pl: Rename from scripts/mkdoc.pl. * libinterp/mk-builtins.pl: Rename from build-aux/mk-builtins.pl. * liboctave/external/mk-f77-def.in.sh: Rename from build-aux/mk-f77-def.in.sh. * libinterp/corefcn/mk-mxarray-h.in.sh: Rename from build-aux/mk-mxarray-h.in.sh. * libinterp/mk-version-h.in.sh: Rename from build-aux/mk-version-h.in.sh. * libinterp/corefcn/genprops.awk: Rename from libinterp/genprops.awk. * libinterp/corefcn/mk-errno-list.sh: Rename from libinterp/mk-errno-list. * libinterp/mk-pkg-add.sh: Rename from libinterp/mk-pkg-add. * scripts/mk-pkg-add.sh: Rename from scripts/mk-pkg-add. * Makefile.am, build-aux/module.mk, configure.ac, libgui/module.mk, libinterp/corefcn/module.mk, libinterp/dldfcn/config-module.awk, libinterp/module.mk, libinterp/operators/module.mk, liboctave/external/module.mk, liboctave/external/ranlib/module.mk, scripts/module.mk: Update.

--- a/configure.ac	Tue Jun 27 09:24:08 2017 -0700
+++ b/configure.ac	Tue Jun 27 15:10:58 2017 -0400
@@ -3156,10 +3156,10 @@
   [$SHELL $srcdir/build-aux/move-if-change oct-conf-post.h-tmp oct-conf-post.h])
 
 OCTAVE_CONFIG_MOVE_IF_CHANGE_FILES([
-  build-aux/mk-default-qt-settings.sh
-  build-aux/mk-f77-def.sh
-  build-aux/mk-mxarray-h.sh
-  build-aux/mk-version-h.sh
+  libgui/mk-default-qt-settings.sh
+  liboctave/external/mk-f77-def.sh
+  libinterp/corefcn/mk-mxarray-h.sh
+  libinterp/mk-version-h.sh
   build-aux/subst-config-vals.sh
   build-aux/subst-cross-config-vals.sh
   build-aux/subst-default-vals.sh