org-latex.el: Escape raw path when exporting links to files.

* org-latex.el (org-export-latex-links): Escape raw path when
exporting links to files.

Thanks to John Smith for reporting this.
Merge branch 'maint'
Support `C-1' prefix for `org-agenda-capture' and `org-capture'.

* org.el (org-get-cursor-date): New optional argument
WITH-TIME to add the time of the day.

* org-capture.el (org-capture): When capturing from the agenda
and with a non-nil value for `org-capture-use-agenda-date', a
`C-1' prefix will set the capture time to the HH:MM of the
current line or the current HH:MM.

* org-agenda.el (org-agenda-capture): New optional argument
WITH-TIME: when set to 1, the capture time will be set to the
HH:MM time of the current line, or the current HH:MM time.

From an agenda buffer, C-1 k (i.e. org-agenda-capture) and
C-1 M-x org-capture RET will use the time of the day of the
current line, or the current time of the day.  The date is
not changed by using this prefix.

Thanks to Rene for triggering this change.
org.el: Display the blocking heading when a TODO state change is blocked.

* org.el (org-block-entry-blocking): New variable.
(org-todo): Use it.  Also use `user-error' when a TODO state
change is blocked.
(org-block-todo-from-children-or-siblings-or-parent): Display
`org-block-entry-blocking' in the user-error message.

Thanks to Mirko Vukovic for triggering this change.
org-babel: fix bug introduced in commit 78cdf149

* lisp/ob.el (org-babel-result-cond): Macro expansion needs to unquote
  formal parameter `result-params´.
ob-python: specify defcustom parameters

* lisp/ob-python.el (org-babel-python-hline-to,
  org-babel-python-None-to): Specify customize group as 'org-babel and
  widget type as 'string.
renaming lisp/ob.el to lisp/ob-core.el
requiring ob now pulls in all of Babel
tangled files should not be writable

  Hopefully this will help keep people from editing tangled source files
  by accident.

* lisp/ob-tangle.el (org-babel-tangle): Tangled files should not be
  writable.
option to byte-compile elisp loaded from Org files

* lisp/ob-tangle.el (org-babel-load-file): When called with a prefix
  argument the tangled emacs-lisp file will be byte compiled.
Use the org-mime-default-header customized variable

* contrib/lisp/org-mime.el (org-mime-htmlize): Use the
  org-mime-default-header customized variable.
org-element: Fix line break parsing

* lisp/org-element.el (org-element-line-break-parser): Line break
  includes the newline character following the backslashes.
(org-element-line-break-interpreter): Apply changes to line break
parsing.
export back-ends: Apply line break changes

* contrib/lisp/org-e-html.el (org-e-html-line-break): Apply line break
  changes.
* contrib/lisp/org-e-latex.el (org-e-latex-line-break): Apply line
  break changes.
* contrib/lisp/org-e-texinfo.el (org-e-texinfo-line-break): Apply line
  break changes.
* contrib/lisp/org-md.el (org-md-line-break): Apply line break
  changes.
org-e-html: Small refactoring

* contrib/lisp/org-e-html.el (org-e-html-fontify-code): Activating
  major mode before inserting contents avoid problem of initial
  visibility for an Org buffer.
org-exp.el (org-export-copy-to-kill-ring): Add a new choice 'if-interactive and use it as the default.

* org-exp.el (org-export-copy-to-kill-ring): Add a new choice
'if-interactive and use it as the default.
(org-export-push-to-kill-ring): Use the new choice.
org.texi: Fix typos.
Merge branch 'maint'
* contrib/lisp/org-e-texinfo.el: Provided export of info: links

(org-e-texinfo-link): Parse info: links to allow linking to
appropriate info nodes.
org-export: Add asynchronous process wrapper for export

* contrib/lisp/org-export.el (org-export-async-stack,
org-export-async-debug, org-export-in-background,
org-export-async-init-file, org-export-stack-mode-map): New
variables.
(org-export-async-start): New macro.
(org-export--stack-source-at-point, org-export--stack-refresh,
 org-export-add-to-stack, org-export--stack-remove,
 org-export--stack-view, org-export--stack-clear,
 org-export-stack, org-export-copy-buffer,
 org-export--generate-copy-script): New functions.
(org-export-dispatch, org-export-dispatch-ui): Allow to toggle
asynchronous export.
(org-export-with-buffer-copy): Renamed from
`org-export-with-current-buffer-copy'.
(org-export-execute-babel-code): Use new function to copy a buffer.
(org-export-as): Remove all text properties from output so it still
can be sent to the original process.
org-e-publish: Activate asynchronous publishing

* contrib/lisp/org-e-publish.el (org-e-publish, org-e-publish-all,
  org-e-publish-current-file, org-e-publish-current-project): Activate
  asynchronous publishing.
(org-e-publish-initial-buffer): Remove unused variable.
* contrib/lisp/org-export.el (org-export-dispatch): Send asynchronous
  flag to publishing functions, when needed.