testing/README: Fix instructions

TINYCHANGE
org.texi (References): Clarify an example

* org.texi (References): Clarify an example.

Thanks to Xue Fuqiao, Eric S Fraga and H. Dieter Wilhelm
for sorting this out.
Merge branch 'maint'
org-macs.el (org-unmodified): Inhibit modification hooks

* org-macs.el (org-unmodified): Inhibit modification hooks.

TINYCHANGE
Merge branch 'maint'
option to show time stamps over result hashes

  suggested by Thomas Alexander Gerds

* lisp/ob-core.el (org-babel-result-regexp): Now matching time stamp as
  well.
  (org-babel-hash-show-time): Variable controlling the display of time
  stamps.
  (org-babel-current-result-hash): With hash time stamps.
  (org-babel-hide-all-hashes): With hash time stamps.
  (org-babel-where-is-src-block-result): With hash time stamps.
org-export: Fix failing test

* testing/lisp/test-org-export.el: Fix failing test.
fix bug introduced in c1226e8

* lisp/ob-core.el (org-ts-regexp): Declare this here as well.
org-e-latex: Allow to provide a format string for date keyword

* contrib/lisp/org-e-latex.el (org-e-latex-date-timestamp-format): New
  variable.
(org-e-latex-date-format): Removed variable.
(org-e-latex-template): Allow to provide a format string iff date
consists in a single timestamp.
org-html.el (org-html-handle-links): Fix bug in setting the attribute for link with images

* org-html.el (org-html-handle-links): When the link
description is an image and the attribute is "width",
pass the attribute to the <img ...> tag.

Thanks to John Hendy for reporting this.
org-e-html.el (org-e-html-link): Don't add attributes to the link when they are already part of the link description

* org-e-html.el (org-e-html-link): Don't add attributes to the
link when they are already part of the link description.
ob-core.el (org-ts-regexp): Remove duplicate defconst'ing

* ob-core.el (org-ts-regexp): Remove duplicate defconst'ing.
(org-babel-result-regexp): Don't use `org-ts-regexp', use a
regexp string directly.

This is not the best solution, we should be able to use
`org-ts-regexp' here, but the dependencies makes it hard.
So let's not define org-ts-regexp twice, just use a raw
regexp instead, and add a FIXME warning about this.
Allow to contextualize capture and agenda commands by checking the name of the buffer

* org.el (org-contextualize-validate-key): Check against two
new context predicates [not-]in-buffer.

* org-capture.el (org-capture-templates-contexts):
* org-agenda.el (org-agenda-custom-commands-contexts):
Document the new [not-]in-buffer context predicates.

Thanks to Paul Sexton for triggering this and for proposing a patch.
ob-lilypond.el (ly-process-basic): Bugfix, don't use `pcase'

* ob-lilypond.el (ly-process-basic): Bugfix, don't use
`pcase'.

Thanks to Achim Gratz for suggesting this.
org-html.el: Enhance docstrings

* org-html.el (org-export-html-preamble-format)
(org-export-html-postamble-format): Mention that
org-export-html-preamble/postamble need to be `t' in order for
these variables to have any effect.
Merge branch 'master-new-features'
Merge branch 'maint'
org-clock.el (org-clock-sum): Protect with `org-unmodified'

* org-clock.el (org-clock-sum): Protect with `org-unmodified'.

TINYCHANGE
Merge branch 'maint'
org-clock.el (org-clock-sum): Fix indentation