jemdoc-mode for Emacs

jemdoc-mode is a major mode for editing jemdoc files.

Installation:

If you have a recent version of package.el you can install jemdoc-mode from the MELPA package repository.

Ensure that jemdoc-mode.el is in a directory on your load-path, and add (require 'jemdoc-mode) to your ~/.emacs or ~/.emacs.d/init.el.

If font-lock+ is installed, it is used to ignore (i.e., not fontify) code-block regions (i.e., tilde blocks with {...}{...} arguments)
There is a simple option for editing code-blocks with proper syntax highlighting in an "edit-buffer" (see jemdoc-mode-edit-code-block, and the associated keybinding C-x n r). The edited text can be inserted back in the jemdoc buffer (using the menu at the top of the "edit-buffer").
By default jit-lock is not used as a font-lock support mode. It could be turned on by setting jemdoc-font-lock-support-mode to 'jit-lock
```
(setq jemdoc-font-lock-support-mode 'jit-lock)
```