Consistent output destination directory structure

[alonbl]

Problem

Currently if you use single renderer or multiple renderer the structure of the destination directory changes.

If you have a single renderer the output goes directly into the destination directory.

If you have multiple renderers a top level directory is created for each renderer.

This behavior makes it difficult to maintain and optional renderers.

The following creates DEST/index.html:

[output.html]

The following creates DEST/html/index.html:

[output.html]
[output.pdf]

Proposed Solution

I suggest to support additional configuraiton in the output, in this case dest to enable the user to specify where to put the files, keeping backward compatibility when empty and there are more than one is to put render name.

[output.html]
dest=html

Notes

Workaround, always specify both, when we need only html, set pdf command to true.

[output.html]
[output.pdf]
command = true

This is ugly...