org.el (org-insert-heading): If the current item has a checkbox, insert the new item with a checkbox

* org.el (org-insert-heading): If the current item has a
checkbox, insert the new item with a checkbox.
ox-latex: Do not overwrite provided numbering options in minted and listings

* lisp/ox-latex.el (org-latex-src-block): Do not overwrite provided
  numbering options in minted and listings.

If "numbers" option (resp. "linenos" option) is provided in
`org-latex-listings-options' (resp. `org-latex-minted-options'),
export will ignore "+n" and "-n" switches from source blocks.
org-contacts.el: Fix or add docstrings

* org-contacts.el (org-contacts-db)
(org-contacts-try-completion-prefix)
(org-contacts-all-completions-prefix)
(org-contacts-make-collection-prefix)
(org-contacts-display-sort-function)
(org-contacts-icon-as-string, org-contacts-format-name)
(org-contacts-gnus-insinuate): Fix or add docstring.
ox-html.el: Fix or add docstring

* ox-html.el (org-html-text-markup-alist)
(org-html-pretty-output, org-html-link-org-files-as-html)
(org-html-postamble, org-html-preamble)
(org-html-format-inline-image, org-html-splice-attributes)
(org-export-splice-style, org-html-htmlize-region-for-paste)
(org-html-fix-class-name)
(org-html-format-footnote-reference)
(org-html-format-footnotes-section)
(org-html-footnote-section, org-html--anchor)
(org-html--todo, org-html--tags, org-html-format-headline)
(org-html-toc, org-html-format-section, org-html-checkbox)
(org-html-format-list-item, org-html-format-latex)
(org-html-encode-plain-text)
(org-html-table-first-row-data-cells)
(org-html-table--table.el-table, org-html-final-function): Fix
or add docstring.
ox-latex.el: Fix some typos in docstrings

* ox-latex.el:
(org-latex-table-scientific-notation, org-latex-verse-block):
Fix typos in docstrings.
org-agenda.el: Fix or add docstrings.

* org-agenda.el (org-agenda-format-date-aligned)
(org-agenda-time-of-day-to-ampm-maybe)
(org-scheduled-past-days)
(org-agenda-normalize-custom-commands)
(org-agenda-run-series, org-store-agenda-views): Fix or add
docstring.
ox-html.el: Update the default CSS

* ox-html.el (org-html-style-default): Cosmetic changes.
(org-html-postamble, org-html-preamble)
(org-html-preamble-format): Update docstring.
org-capture.el: Fix or add docstrings

* org-capture.el (org-capture-templates, org-capture-string)
(org-capture-steal-local-variables)
(org-capture-empty-lines-before)
(org-capture-empty-lines-after)
(org-capture-insert-template-here)
(org-capture-import-remember-templates): Fix or add docstring.
Add :version and :package-version

* ox.el (org-export-snippet-translation-alist)
(org-export-coding-system, org-export-in-background)
(org-export-async-init-file, org-export-invisible-backends)
(org-export-dispatch-use-expert-ui):
* ox-texinfo.el (org-texinfo-filename, org-texinfo-classes)
(org-texinfo-format-headline-function)
(org-texinfo-node-description-column)
(org-texinfo-active-timestamp-format)
(org-texinfo-link-with-unknown-path-format)
(org-texinfo-tables-verbatim)
(org-texinfo-table-scientific-notation)
(org-texinfo-text-markup-alist)
(org-texinfo-format-drawer-function)
(org-texinfo-format-inlinetask-function)
(org-texinfo-info-process):
* ox-man.el (org-man-tables-centered)
(org-man-table-scientific-notation)
(org-man-source-highlight, org-man-source-highlight-langs)
(org-man-pdf-process, org-man-logfiles-extensions):
* ox-html.el (org-html-allow-name-attribute-in-anchors)
(org-html-coding-system, org-html-divs):
* ox-ascii.el (org-ascii-text-width)
(org-ascii-headline-spacing, org-ascii-indented-line-width)
(org-ascii-paragraph-spacing, org-ascii-charset)
(org-ascii-underline, org-ascii-bullets)
(org-ascii-links-to-notes)
(org-ascii-table-keep-all-vertical-lines)
(org-ascii-table-widen-columns)
(org-ascii-table-use-ascii-art)
(org-ascii-format-drawer-function)
(org-ascii-format-inlinetask-function):
* org.el (org-modules, org-export-backends)
(org-highlight-latex-and-related, orgstruct-setup-hook):
* org-attach.el (org-attach-git-annex-cutoff):
* org-archive.el (org-archive-file-header-format):
* org-agenda.el (org-agenda-todo-ignore-time-comparison-use-seconds):
* ob-python.el (org-babel-python-hline-to)
(org-babel-python-None-to):
* ob-ditaa.el (org-ditaa-eps-jar-path):
* ob-core.el (org-babel-results-keyword): Add :version and
:package-version.

* ox-ascii.el: Use utf-8-emacs as the file coding system.
ox-html.el: More CSS tweaks

* ox-html.el (org-html-style-default): More cosmetic tweaks.
(org-html-head-include-default-style): Minor docstring update.

Thanks to Ken Williams who provided the patch about adding
the name of the source code block.
Remove :version and :package-version in contributed packages
Fix export back-ends status when reloading Org

* lisp/org.el (org-export-backends): Do not reset list of loaded
  back-ends to variable's value after a reload.
* lisp/org.el (org-set-font-lock-defaults): include link targets

The org-target face is created in org-faces.el, but never used for
font-locking.  This patch fixes that.
ox-latex: Support tikz images, :width, and :height

* ox-latex.el:
(org-latex-image-default-option): Change default value to ""
(org-latex-image-default-width)
(org-latex-image-default-height): Add variables
(org-latex-inline-image-rules): Make .tikz files as exportable with
latex
(org-latex--inline-image): Support tikz images.  Also support separate
:width and :height parameters for images.

* ob-R.el (org-babel-R-construct-graphics-device-call): Change file
extension of tikz graphics files to .tikz

Tikz graphics should be exported to LaTeX by \include, not as a link.
This commit changes the file extension used for tikz graphics from .tex
to .tikz, and inserts code for including such images.  The :options for
tikz graphics are passed as an optional argument to a tikzpicture
environment.

Also provide :width and :height ATTR_LATEX entries for images.  For tikz
graphics, these are implemented with \resizebox; for other image types
they are inserted in the optional arguments to \includegraphics.
Revert `org-agenda-dim-blocked-tasks' and `org-agenda-inhibit-startup' to their previous default (t and nil)

* org.el (org-agenda-inhibit-startup): Revert to nil as the default.
* org-agenda.el (org-agenda-dim-blocked-tasks): Revert to t as the
default.

The reason for this reversion is that that users expect the agenda to
DTRT by default, and that it's better not to change the previous default
in general.  Also, users who need to speed up their agenda are probably
long time users with big and numerous agenda files, and it's easier for
them to find these variables than it is for newbies to find out why the
agenda does not DTRT.

If users want to speed up their agenda, they can now read advice here:
http://orgmode.org/worg/agenda-optimization.html
org.el (org-time-clocksum-use-effort-durations): Use nil as the default

* org.el (org-time-clocksum-use-effort-durations): Don't set to t
by default as it will change many clocktables out there.  Let the
user decides whether she wants to turn this on.
ox-beamer: Remove frame arount toc when generated from a TOC keyword

* lisp/ox-beamer.el (org-beamer-keyword): Remove frame arount toc when
  generated from a TOC keyword.

Since TOC keywords are a way to add a table of contents at some
precise location, it is reasonable to think the user will also want to
control the frame surronding it.  Table of contents generated with
toc:t option item still get wrapped within a frame.
ox: Fix `org-map-entries' with a nil scope argument usage in hooks

* lisp/ox.el (org-export--generate-copy-script): Call `org-mode' when
  duplicating a buffer.  It will properly set every variable, like
  `comment-start'.
(org-export-async-start): Do not call `org-mode' since this is done
already in the previous function.
ox-icalendar: Fix code comment

* lisp/ox-icalendar.el (org-icalendar-export-to-ics): Change back-end
  name from `e-ascii' to `ascii'.
Export framework: Add :version and :package-version informations to defcustoms

* lisp/ox-beamer.el (org-beamer-column-view-format, org-beamer-theme,
  org-beamer-environments-extra): Add :version and :package-version.
* lisp/ox-html.el (org-html-with-latex, org-html-inline-image-rules):
  Add :version and :package-version.
* lisp/ox-latex.el (org-latex-inline-image-rules,
  org-latex-default-table-environment, org-latex-default-table-mode,
  org-latex-tables-booktabs, org-latex-table-scientific-notation,
  org-latex-known-errors): Add :version and :package-version.
* lisp/ox-md.el (org-md-headline-style): Add :version
  and :package-version.
* lisp/ox-odt.el (org-odt-with-latex): Add :version
  and :package-version.
* lisp/ox.el (org-export-with-drawers, org-export-with-latex,
  org-export-with-inlinetasks, org-export-with-planning,
  org-export-with-smart-quotes, org-export-with-statistics-cookies,
  org-export-allow-bind-keywords, org-export-async-init-file):
  Add :version and :package-version.