ox-koma-letter.el: update docstring

* ox-koma-letter.el (org-koma-letter-prefer-special-headings): change
docstring.
Merge remote-tracking branch 'origin/master'
Merge remote-tracking branch 'origin/master'
Merge remote-tracking branch 'origin/master'
ox: Allow file-links with #+INCLUDE-keyword

* org.el (org-edit-special): Handle file-links for INCLUDE.
* ox.el (org-export--prepare-file-contents): Handle links and
add option no-heading.
* ox.el (org-export-expand-include-keyword): Resolve headline
links and add option :only-contents.
* orgguide.texi (Include files)
org.texi (Include files): Updated.
* testing/examples/include.org: New examples.
* test-ox.el (test-org-export/expand-include): New tests.
Fix `org-edit-special' on file names with spaces

* lisp/org.el (org-edit-special): Fix function when INCLUDE or
  SETUPFILE keyword points to a file name with spaces.
test-ox.el: Fix test-error from 986037a.

* test-ox.el (test-org-export/expand-include): Updated tests.
ox: Support unnumbered headlines via property

* ox.el (org-export--collect-headline-numbering): Ignore unnumbered headline.
(org-export-get-headline-id,
org-export--collect-unnumbered-headline-id): New functions.
(org-export-numbered-headline-p): Further tests for unnumbered headline.
* ox-odt.el (org-odt-headline, org-odt-link,
org-odt-link--infer-description)
ox-md.el (org-md-headline, org-md-link),
ox-latex.el (org-latex-headline, org.latex-link),
ox-html.el (org-html-headline, org-html-link),
ox-ascii.el (org-ascii-link): Support unnumbered headlines.
* test-ox.el (test-org-export/org-export-get-headline-id): New test.
* OrgOdtStyles.xml: Add styles for unnumbered headings.
Fix 464cd96

* lisp/ox-html.el (org-html-link):
* lisp/ox-md.el (org-md-link): Fix errors introduced in
  464cd965cb916b1ff60754226a3c2cc85b874abf.
Merge remote-tracking branch 'origin/master'
ox-koma-letter.el: Update docstring.

* ox-koma-letter.el (org-koma-letter-prefer-special-headings): Change
docstring.
Merge remote-tracking branch 'origin/master'
ob-table: Updated documentation.

* ob-table.el (org-sbe): Updated documentation.
Backport typo fixes from Emacs 24 branch
ob-clojure.el: Remove nrepl.el support

* ob-clojure.el (org-babel-clojure-backend)
(org-babel-execute:clojure): Remove nrepl.el support.
Merge branch 'master' of orgmode.org:org-mode
Merge branch 'maint'
ob-clojure.el: Fix compatibility issue

* ob-clojure.el (org-babel-execute:clojure): Fix compatibility
issue with cider >0.7.0.  This breaks compatibility with Cider
<=0.7.0.

Thanks to Daniel Szmulewicz for the suggested fix.
org-agenda.el: Update docstring

    * org-agenda.el (org-agenda-time-grid): Change docstring.

TINYCHANGE
Merge branch 'maint'