[NonGNU ELPA] Org-Tree-Slide version 2.8.18

[ELPA update]

Version 2.8.18 of package Org-Tree-Slide has just been released in NonGNU ELPA.
You can now find it in M-x package-list RET.

Org-Tree-Slide describes itself as:
  A presentation tool for org-mode

More at https://elpa.nongnu.org/nongnu/org-tree-slide.html

Recent NEWS:

2020-06-11  Takaaki ISHIKAWA  <takaxp@ieee.org>

        * org-tree-slide.el: Depends on emacs 24.3
        Replace org-tree-slide--narrowing-p with buffer-narrowed-p.

2020-06-05  Takaaki ISHIKAWA  <takaxp@ieee.org>

        * org-tree-slide.el (org-tree-slide-indicator): New plist to control 
showing messages in mini buffer

2020-01-14  Norman Walsh  <ndw@nwalsh.com>

        * org-tree-slide.el: Add support for date header (#31)

2019-07-30  Takaaki ISHIKAWA  <takaxp@ieee.org>

        * org-tree-slide.el (org-tree-slide-content--pos): Rename

2019-06-30  Boruch Baum  <boruch_baum@gmx.com>

        * org-tree-slide.el (org-tree-slide-content): Toggle back to slide
        presentation, to exact position where you left off.
        (org-tree-slide-content--pos): New variable to support this feature.

2018-11-26  Takaaki ISHIKAWA  <takaxp@ieee.org>

        * org-tree-slide.el: Extract header colors from default face of frame
        - the implementation of `org-tree-slide-header-overlay-face' is updated 
so that user don't need to set the variable explicitly. In case user customized 
theme is updated after loading this package, an appropriate function for 
updating the face spec should be run in `org-tree-slide-play-hook'. For 
instance,
          (defun my-reload-header-face ()
        (face-spec-set 'org-tree-slide-header-overlay-face
                 `((t (:bold t :foreground ,(face-foreground 'default)
                               :background ,(face-background 'default))))))
      (add-hook 'org-tree-slide-play-hook #'my-reload-header-face)

2018-09-06  Takaaki ISHIKAWA  <takaxp@ieee.org>

        * org-tree-slide.el: Support additional heading faces (#28)
        - outline-1 and outline-4 can be also emphasized.

2017-11-30  Takaaki ISHIKAWA  <takaxp@ieee.org>

        * org-tree-slide.el: Added a hook for CONTENT viewing mode

2016-05-14  Takaaki ISHIKAWA  <takaxp@ieee.org>

        * org-tree-slide.el: Merged breadcrumbs feature (#23) (by Matus)
        - org-tree-slide-breadcrumbs is added to show breadcrumbs in the header

2015-12-23  Takaaki ISHIKAWA  <takaxp@ieee.org>

        * org-tree-slide.el: Added Version header

        * org-tree-slide.el: Added a tag for Melpa Stable

2015-08-14  Takaaki ISHIKAWA  <takaxp@ieee.org>

        * org-tree-slide.el: 'COMMENT'-subtree will be hidden (by Stefano)
        - org-tree-slide--show-subtree is added
        - Subtrees that start with 'COMMENT' will be hidden during presentation 
even though org-tree-slide-fold-subtrees-skipped is nil
        Thanks to Stefano BENNATI

2015-08-09  Takaaki ISHIKAWA  <takaxp@ieee.org>

        * org-tree-slide.el: Added a flag to reveal subtrees to be skipped
        - org-tree-slide-fold-subtrees-skipped is added
        - The original idea was proposed by bennati (https://github.com/bennati)
        - org-tree-slide--heading-level-skip-p was revised so that the status 
can be checked by providing an arbitrary level number.

2015-02-27  Takaaki ISHIKAWA  <takaxp@ieee.org>

        * org-tree-slide.el: Hide org-clock related code
        - To reduce loading time, org-clock related code was hidden.

2015-02-20  Takaaki ISHIKAWA  <takaxp@ieee.org>

        * org-tree-slide.el: Default keymap was changed
        - Due to many reports on conflicting key binding, `<left>' and 
`<right>', these keymap changed to `C->' and `C-<'.

        * org-tree-slide.el: Add new hooks and rename old hooks
        - Added `org-tree-slide-before-move-next-hook' and 
`org-tree-slide-before-move-previous-hook'
        - Renamed hooks. `org-tree-slide-mode-play-hook', 
`org-tree-slide-mode-stop-hook', `org-tree-slide-mode-before-narrow-hook', 
`org-tree-slide-mode-after-narrow-hook' will be obsoleted soon.

2015-02-15  Takaaki ISHIKAWA  <takaxp@ieee.org>

        * org-tree-slide.el (org-tree-slide): Replace ots- with org-tree-slide--
        - According to the Coding Conventions provided from gnu.org, the prefix 
for internal functions should be described with two hyphens to avoid name 
conflicts with other packages.

2015-02-14  Takaaki ISHIKAWA  <takaxp@ieee.org>

        * org-tree-slide: Refine displaying slide number in modeline
        - If 'lighter is specified, the slide number will be updated 
aggressively, then it's slow. On the other hand, 'outside is specified which 
will be shown quickly in the same position of 'lighter because it changes the 
number only if a slide is moved to the next/previous slide.
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