Support Freemind/Freeplane export

[Jambunathan K <kjambunathan@gmail.com>]

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I have added support for Freemind/Freeplane Mindmap export.  I am
attaching sample files produced with the new exporter.

You are welcome to merge the changes to Org repo.

,---- http://repo.or.cz/w/org-mode/org-kjn.git
| URL	git://repo.or.cz/org-mode/org-kjn.git
| 	http://repo.or.cz/r/org-mode/org-kjn.git
`----

,----
| kjambunathan@debian-6:~/src/org-mode$ git log upstream/master..
| commit 0d49f12f61cf6799f22f1fc4d8cbbef78a67a315
| Author: Jambunathan K <kjambunathan@gmail.com>
| Date:   Sat Mar 2 11:00:46 2013 +0530
| 
|     lisp/ox-freemind.el: Freemind Mindmap Back-End for Org Export Engine
|     
|     * lisp/ox-freemind.el: New file.  Freemind Mindmap Back-End
|     for Org Export Engine.
|     
|     * lisp/ox-html.el (org-html--tags, org-html-format-headline)
|     (org-html--format-toc-headline, org-html-checkbox)
|     (org-html-table-cell, org-html-timestamp)
|     (org-html-verse-block, org-html-special-string-regexps):
|     Replace named HTML entities with their numeric counterparts.
|     This keeps Freemind backend happy.
`----




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#+TITLE: Emacs 24.4 News
#+OPTIONS: H:2 

\f
* Installation Changes in Emacs 24.4

** Emacs can be compiled with POSIX ACL support.
This happens by default if a suitable support library is found at
build time, like libacl on GNU/Linux.  To prevent this, use the
configure option `--without-acl'.

** The configure option --with-crt-dir has been removed.
It is no longer needed, as the crt*.o files are no longer linked specially.

\f
* Startup Changes in Emacs 24.4

\f
* Changes in Emacs 24.4

+++
** `apropos-variable' is now `apropos-user-option'
`apropos-user-option' shows all user options while `apropos-variable'
shows all variables.  When called with a universal prefix argument,
the two commands swap their behaviors.  When `apropos-do-all' is
non-nil, they output the same results.

+++
** `eval-defun' on an already defined defcustom calls the :set function,
if there is one.

** If the new variable `enable-dir-local-variables' is nil,
directory local variables are ignored.  May be useful for some modes
that want to ignore directory-locals while still respecting file-locals.

** The option `set-mark-default-inactive' has been deleted.
This unfinished feature was introduced by accident in Emacs 23.1;
simply disabling Transient Mark mode does the same thing.

** `initial-buffer-choice' can now specify a function to set up the
initial buffer.

** ACL support has been added.
+++
*** Emacs preserves the ACL entries of files when backing up.
+++
*** New functions `file-acl' and `set-file-acl' get and set the ACL
entries of a file.  On GNU/Linux, the POSIX ACL interface is used via
libacl.  On MS-Windows, the NT Security APIs are used to emulate the
POSIX ACL interfaces.

** New option `scroll-bar-adjust-thumb-portion'.
Available only on X, this option allows to control over-scrolling
using the scroll bar (i.e. dragging the thumb down even when the end
of the buffer is visible).

\f
* Editing Changes in Emacs 24.4

** New commands `toggle-frame-fullscreen' and `toggle-frame-maximized',
bound to <f11> and M-<f10>, respectively.

** In keymaps where SPC scrolls, S-SPC now scrolls in the reverse direction.
Eg View mode, etc.

\f
* Changes in Specialized Modes and Packages in Emacs 24.4

** Delphi mode is now called OPascal mode.
*** All delphi-* variables and functions have been renamed to opascal-*.
*** `delphi-newline-always-indents' is not supported any more
use `electric-indent-mode' instead.
*** `delphi-tab' is gone, replaced by `indent-for-tab-command'.

** jit-lock-debug-mode lets you use the debuggers on code run via jit-lock.

** completing-read-multiple's separator can now be a regexp.
The default separator is changed to allow surrounding spaces around the comma.

** Battery

*** Battery information via the BSD `apm' utility is now supported.

** cl-lib

*** New macro cl-tagbody.

+++
*** letf is now just an alias for cl-letf.

** Calc

*** Calc by default now uses the Gregorian calendar for all dates, and
uses January 1, 1 AD as its day number 1.  Previously Calc used the
Julian calendar for dates before September 14, 1752, and it used
December 31, 1 BC as its day number 1; the new scheme is more
consistent with Calendar's calendrical system and day numbering.

*** The new variable `calc-gregorian-switch' lets you configure the
date when Calc switches from the Julian to the Gregorian calendar.
Nil, the default value, means to always use the Gregorian calendar.
The value (YEAR MONTH DAY) means to start using the Gregorian calendar
on the given date.

*** Support for ISO 8601 dates.

** Dired

*** New minor mode `dired-hide-details-mode' hides details.

** ERC

*** New option `erc-accidental-paste-threshold-seconds'.
If set to a number, this can be used to avoid accidentally paste large
amounts of data into the ERC input.

** Icomplete is a bit more like IDO.
*** key bindings to navigate through and select the completions.
*** The icomplete-separator is customizable, and its default has changed.
*** Removed icomplete-show-key-bindings.

** Image mode

*** New commands `n' (`image-next-file') and `p' (`image-previous-file')
visit the next image file and the previous image file in the same
directory, respectively.

*** New commands to show specific frames of multi-frame images.
`f' (`image-next-frame') and `b' (`image-previous-frame') visit the
next or previous frame.  `F' (`image-goto-frame') shows a specific frame.

---
*** The command `image-mode-fit-frame' deletes other windows.
When toggling, it restores the frame's previous window configuration.
It also has an optional frame argument, which can be used by Lisp
callers to fit the image to a frame other than the selected frame.

** Isearch

*** `C-x 8 RET' in Isearch mode reads a character by its Unicode name
and adds it to the search string.

** MH-E has been updated to MH-E version 8.4.
See MH-E-NEWS for details.

---
** The unrmail command converts from BABYL to mboxrd rather than mboxo.
Customize `unrmail-mbox-format' to change this.

---
** Similarly, customize `rmail-mbox-format' to influence some minor aspects
of how Rmail displays non-MIME messages.

+++
** New function `ses-rename-cell' to give SES cells arbitrary names.

** trace-function was largely rewritten.
New features include:
- no prompting for the destination buffer, unless a prefix-arg was used.
- additionally to prompting for a destination buffer, when a prefix-arg is
  used, the user can enter a "context", i.e. Lisp expression whose value at the
  time the function is entered/exited will be printed along with the function
  name and arguments.  Useful to trace the value of (current-buffer) or
  (point) when the function is invoked.

** New command `delete-duplicate-lines' has two types of operation:
when its arg ADJACENT is non-nil (when called interactively with C-u C-u)
it works like the utility `uniq'.  Otherwise by default it deletes
duplicate lines everywhere in the region without regard to adjacency.

** New `cycle-spacing' command allows cycling between having just one
space, no spaces, or reverting to the original spacing.  Like
`just-one-space' command it can handle or ignore newlines and
leave different number of spaces.

** Tramp

+++
*** New connection method "adb", which allows to access Android
devices by the Android Debug Bridge.  The variable `tramp-adb-program'
can be used to adapt the path of the "adb" program, if needed.

*** The connection methods "plink1", "ssh1", "ssh2", "scp1", "scp2",
"scpc" and "rsyncc" are discontinued.  The ssh option
"ControlMaster=auto" is set automatically in all ssh-based methods,
when possible.

+++
*** Handlers for `file-acl' and `set-file-acl' for remote machines
which support POSIX ACLs.

** Woman

*** The commands `woman-default-faces' and `woman-monochrome-faces'
are obsolete.  Customize the `woman-* faces instead.

** Obsolete packages:

*** longlines.el is obsolete; use visual-line-mode instead.

*** terminal.el is obsolete; use term.el instead.

+++
*** yow.el is obsolete; use fortune.el or cookie1.el instead.

---
*** The Info-edit command is obsolete.  Editing Info nodes by hand
has not been relevant for some time.

\f
* New Modes and Packages in Emacs 24.4
** New nadvice.el package offering lighter-weight advice facilities.
It is layered as:
- add-function/remove-function which can be used to add/remove code on any
  function-carrying place, such as process-filters or `<foo>-function' hooks.
- advice-add/advice-remove to add/remove a piece of advice on a named function,
  much like `defadvice' does.

\f
* Incompatible Lisp Changes in Emacs 24.4

** Removed inhibit-local-menu-bar-menus.

** frame-local variables that affect redisplay do not work any more.
More specifically, the redisplay does not bother to check for a frame-local
value when looking up variables.

** nil and "unbound" are indistinguishable in symbol-function.
`symbol-function' never signals `void-function' any more.
`fboundp' returns non-nil if the symbol was `fset' to nil.

** `defadvice' does not honor the `freeze' flag and cannot advise
special-forms any more.

** `dolist' in lexical-binding mode does not bind VAR in RESULT any more.
VAR was bound to nil which was not tremendously useful and just lead to
spurious warnings about an unused var.

** The return value of `backup-buffer' has changed.
The second argument is no longer an SELinux context, instead it is an
alist of extended attributes as returned by the new function
`file-extended-attributes'.  The attributes can be applied to another
file using `set-file-extended-attributes'.

\f
* Lisp Changes in Emacs 24.4

** Support for filesystem notifications.
Emacs now supports notifications of filesystem changes, such as
creation, modification, and deletion of files.  This requires the
'inotify' API on GNU/Linux systems.  On MS-Windows systems, this is
supported for Windows XP and newer versions.

** Changes in autorevert.el

---
*** If Emacs is compiled with file notification support, notifications
are used instead of checking the time stamp of the files.  You can
disable this by setting the user option `auto-revert-use-notify' to
nil.  Alternatively, a regular expression of directories to be
excluded from file notifications can be specified by
`auto-revert-notify-exclude-dir-regexp'.

---
*** The new user option `auto-revert-remote-files' enables reversion
of remote files when set to non-nil.

** Face changes

*** The `face-spec-set' is now analogous to `setq' for face specs.
Its third arg now accepts values specifying exactly which face spec to
set (defface, custom, or user spec), and it directly sets the relevant
property using the supplied face spec.

*** Face specs set via Custom themes now replace the `defface' spec
rather than inheriting from it (as do face specs set via Customize).

*** New face characteristic (supports :underline (:style wave))
specifies whether or not the terminal can display a wavy line.

** Image API

+++
*** `image-animated-p' is now `image-multi-frame-p'.
It returns non-nil for any image that contains multiple frames,
whether or not it specifies a frame delay.

+++
*** When animating images that do not specify a frame delay,
Emacs uses `image-default-frame-delay'.

+++
*** New functions `image-current-frame' and `image-show-frame' for getting
and setting the current frame of a multi-frame image.

** time-to-seconds is not obsolete any more.
** New function special-form-p.
** Docstrings can be made dynamic by adding a `dynamic-docstring-function'
text-property on the first char.

** The `defalias-fset-function' property lets you catch calls to defalias
and redirect them to your own function instead of `fset'.

** The 9th element returned by `file-attributes' is now unspecified.
Formerly, it was t if the file's gid would change if file were deleted
and recreated.  This value has been inaccurate for years on many
platforms, and nobody seems to have noticed or cared.

** The function `file-ownership-preserved-p' now has an optional
argument GROUP which causes it check for file group too.  This can be
used in place of the 9th element of `file-attributes'.

** New functions `group-gid' and `group-real-gid'.

** The 6th argument to `copy-file' has been renamed to
`preserve-extended-attributes' as it now handles both SELinux context
and ACL entries.

\f
* Changes in Emacs 24.4 on Non-Free Operating Systems

+++
** The "generate a backtrace on fatal error" feature now works on MS Windows.
The backtrace is written to the 'emacs_backtrace.txt' file in the
directory where Emacs was running.

+++
** The variable `buffer-file-type' is no longer supported.
Setting it has no effect, and %t in the mode-line format is ignored.
Likewise, `file-name-buffer-file-type-alist' is now obsolete, and
modifying it has no effect.

---
** Lock files now work on MS-Windows.
This allows to avoid losing your edits if the same file is being
edited in another Emacs session or by another user.  See the node
"Interlocking" in the Emacs User Manual for the details.  To disable
file locking, customize `create-lockfiles' to nil.

** Improved fullscreen support on Mac OS X.
Both native (>= OSX 10.7) and "old style" fullscreen are supported.
Customize `ns-use-native-fullscreen' to change style.  For >= 10.7
native is the default.

\f