delete html editing buffer for markdown-export

[berquist]

It would be nice to at least have a toggle or setting for this. For example, it messes with with ido matching precedence in other panes.

[jrblevin]

I see three options, roughly in order of my preference at the moment:

1. Always kill the HTML output buffer after exporting to a file.
2. Use bury-buffer to put it at the end of the list, but keep it around just in case.
3. Add a customizable variable for whether to kill it or not.

Anyone have thoughts or comments on this?

[berquist]

Unless you're averse to adding options, another possibility is a combination of 3 and a variable for 2. This would be the most flexible.

Personally, I have no need to ever look at the file unless I'm debugging.

[jrblevin]

To avoid overcomplicating things, I added an option to kill the buffer which defaults to t. The new variable is markdown-export-kill-buffer.