* lisp/vc/log-edit.el (log-edit-vc-backend): New variable.
(log-edit): Doc fix.
* lisp/vc/log-view.el (log-view-vc-fileset, log-view-vc-backend): Doc fix.
* lisp/vc/vc-dispatcher.el (vc-log-edit): New args. Use PARAMS
argument of log-edit to set up all local variables.
(vc-start-logentry): New optional arg specifying VC backend.
* lisp/vc/vc.el (vc-checkin): Use it.
(vc-deduce-fileset): Handle Log Edit buffers.
(vc-diff): Make first argument optional too.
* vc/vc.el (vc-string-prefix-p):
* vc/pcvs-util.el (cvs-string-prefix-p):
* textmodes/tex-mode.el (latex-string-prefix-p, tex-string-prefix-p):
* mpc.el (mpc-string-prefix-p):
Make all of these into obsolete aliases for string-prefix-p.
Update callers.
* vc/pcvs.el, vc/vc-dispatcher.el, vc/vc-dir.el: Update callers.
* vc/vc-bzr.el (vc-bzr--branch-conf): Function deleted.
(vc-bzr-branch-conf): New function, similar to vc-bzr--branch-conf
but returning an alist. Ignore comments in bzr conffile.
(vc-bzr-pull, vc-bzr-merge-branch): Use vc-bzr-branch-conf.
(vc-bzr-error-regex-alist): New var.
(vc-bzr-merge-branch): Use it to highlight the pull/merge buffer.
* progmodes/compile.el (compilation--flush-directory-cache):
Handle the case where cdr of compilation--flush-directory-cache
points to no buffer, which can occur if we previously switched to
compilation-mode in a pregenerated buffer.
* vc/vc-dispatcher.el (vc-do-async-command): Bind
inhibit-read-only to t.
* vc/vc-dispatcher.el (vc-set-async-update): New function for
updating Dired or VC-dir buffers after async command completes.
* vc/vc-bzr.el (vc-bzr-async-command): Return the process buffer.
(vc-bzr-pull, vc-bzr-merge-branch): Use vc-set-async-update.
* vc/vc-git.el (vc-git-merge-branch): Add FETCH_HEAD to branch
completions if it exists. Use vc-set-async-update.
(vc-git-pull): Use vc-set-async-update.
* vc/vc-hg.el (vc-hg-pull): Fix default-contents arg to
read-shell-command. Use vc-set-async-update.
(vc-hg-merge-branch): Use vc-set-async-update.
* lisp/vc/vc.el (vc-pull): Make vc-update an alias for this, instead of
the other way around.
* lisp/vc/vc-git.el (vc-git-branches, vc-git-pull)
(vc-git-merge-branch): New functions.
(vc-git-history): New var.
* lisp/vc/vc-hg.el (vc-hg-history): New var.
(vc-hg-pull): Perform default pull if called via Lisp by vc-pull.
(vc-hg-merge-branch): New function.
* vc/vc-dispatcher.el (vc-do-async-command): New function.
* vc/vc-bzr.el (vc-bzr-async-command): Convert into a wrapper for
vc-do-async-command.
* vc/vc-bzr.el (vc-bzr-pull, vc-bzr-merge-branch): Callers changed.
