Run admin/update-copyright.

* configure.ac (DEPDIR, MKDEPDIR, deps_frag, lwlib_deps_frag)
(oldxmenu_deps_frag, lisp_frag): Remove output variables/files.
(AUTO_DEPEND): New output variable.
* lwlib/Makefile.in (AUTO_DEPEND): New, set by configure.
(DEPFLAGS, MKDEPDIR): Set directly via conditional.
(lwlib_deps_frag): Replace by conditional include.
* lwlib/autodeps.mk: Remove file.
* oldXMenu/Makefile.in (AUTO_DEPEND): New, set by configure.
(DEPFLAGS, MKDEPDIR): Set directly via conditional.
(oldxmenu_deps_frag): Replace by conditional include.
* oldXMenu/autodeps.mk: Remove file.
* src/Makefile.in (AUTO_DEPEND): New, set by configure.
(DEPFLAGS, MKDEPDIR): Set directly via conditional.
(lisp_frag): Replace by an include.
(deps_frag): Replace by conditional include.
* src/autodeps.mk: Remove file.

This patch was implemented via the following shell commands:
find * -name ChangeLog |
sed 's,.*,git mv & &.1,
s, lisp/ChangeLog\.1$, lisp/ChangeLog.17,
s, lisp/erc/ChangeLog\.1$, lisp/erc/ChangeLog.09,
s, lisp/gnus/ChangeLog\.1$, lisp/gnus/ChangeLog.3,
s, lisp/mh-e/ChangeLog\.1$, lisp/mh-e/ChangeLog.2,
s, src/ChangeLog\.1$, src/ChangeLog.13,' |
sh
git commit -am"[this commit message]"

* Makefile.in (AM_V_GEN, am__v_GEN_, am__v_GEN_0, am__v_GEN_1)
(AM_V_at, am__v_at_, am__v_at_0, am__v_at_1): New macros.
(libXMenu11.a): Use them.

Run admin/update-copyright.

Conflicts:
	nt/addsection.c
	nt/inc/ms-w32.h
	src/w32.c

This fixes some unwanted 'git status' output after 'make docs'.
* .gitignore: Add **/Makefile, **/makefile.
Remove Makefile, makefile.
Add doc/*/*.xxx rules for the usual kinds of documentation outputs
and temporaries.  Add doc/misc/cc-mode.ss.
* doc/emacs/.gitignore, doc/lispref/.gitignore, doc/misc/.gitignore:
* lwlib/.gitignore, oldXMenu/.gitignore:
Remove, as these .gitignore files are no longer needed.
* doc/lispintro/.gitignore: Replace with list of exceptional PDF files.