* lisp/dirtrack.el (dirtrack-list): Eliminate unused third element.
(dirtrack): Merge code for handling relative filenames in prompt
from shell-dir-cookie-watcher.
(dirtrack-debug-message): New arg to avoid excess format calls.
* lisp/shell.el (shell-dir-cookie-re): Variable deleted.
(shell-dir-cookie-watcher): Function deleted.
(shell-mode): Don't use shell-dir-cookie-re, since it is redundant
with dirtrack-mode.
* sending.texi (Sending Mail): Document initial mail buffer name,
and changed multiple mail buffer behavior.
(Mail Format): Put the example at the top of the section.
(Mail Headers): Move discussion of "From" to the top.
(Mail Sending): Document sendmail-query-once.
(Citing Mail): Make it less Rmail-specific.
* doc/emacs/maintaining.texi (VCS Concepts): Add "working tree" terminology.
(Old Revisions): Use it.
(VCS Repositories): Add "distributed" terminology.
(Log Buffer): Remove duplicate description
about changesets. Fix "current VC fileset" ambiguity.
(Multi-User Branching): Node deleted.
(Branches, Switching Branches): Discuss decentralized version control systems.
(VC Pull): New node.
(Merging): Document merging on decentralized systems.
(Creating Branches): Note that this is specific to CVS and related systems.
* doc/emacs/maintaining.texi (VCS Merging, VCS Changesets): Index entries.
(VC Mode Line): Add index entry for "version control status".
(VC Undo): Use vc-revert instead of its vc-revert-buffer alias.
Document vc-revert-show-diff. De-document vc-rollback.
(VC Directory Mode): Rewrite introduction. Move prefix arg
documentation here from VC Directory Buffer node.
(VC Directory Buffer): Use a decentralized VCS example.
(VC Directory Commands): Use a table. Remove material duplicated
in previous nodes on multi-file VC filsets.
* doc/emacs/maintaining.texi (VCS Concepts): Make "revision" terminology
less CVS-specific.
(VC With A Merging VCS, VC With A Locking VCS): Add xref to
Registering node.
(Secondary VC Commands): Deleted. Promote subnodes.
(Log Buffer): Add command name for C-c C-c. Fix the name of the
log buffer. Add index entries.
(VCS Changesets, Types of Log File, VC With A Merging VCS): Use
"commit" terminology.
(Old Revisions): Move it to just before VC Change Log. "Tag" here
doesn't refer to tags tables. Note other possible forms of the
revision ID. C-x v = does not save.
(Registering): Note similarity to C-x v v action. Fix description
of how backends are chosen. De-document vc-default-init-revision.
(VC Change Log): Document C-x v l in VC-Dir buffer. Document RET
in root log buffers.
* lisp/vc/vc.el (vc-deduce-fileset): Minor doc fix.
* doc/emacs/building.texi (Executing Lisp): Fix xref for C-M-x.
(Lisp Libraries): Add xref to node explaining `load' in Lisp
manual. Note that load-path is not customizable.
(Lisp Eval): Note that listed commands are available globally.
Explain the meaning of "defun" in the C-M-x context.
(Lisp Interaction): Copyedits.
(External Lisp): Fix name of inferior Lisp buffer. Mention Scheme.
(Compilation): Define "inferior process".
* window.c (Vwindow_splits): Rename to
Vwindow_combination_resize. Suggested by Juri Linkov.
(Fsplit_window_internal): Use Vwindow_combination_resize instead
of Vwindow_splits.
* window.el (window-resize, delete-window, split-window):
Replace window-splits by window-combination-resize.
* cus-start.el (window-splits): Replace by
window-combination-resize.
* windows.texi (Resizing Windows, Splitting Windows)
(Deleting Windows): Use term window-combination-resize instead
of window-splits.
