Whothm instructions.  Pick node as default space.
Create output dirs as needed.
Installations of pictures go in installation/ space.

--HG--
rename : data/pictures.yaml => data/installation/pictures.yaml
The beginnings of installations of MP3's.
Auto-populate some installation fields.
Move text installations.  List all online installations.

--HG--
rename : data/texts.yaml => data/installation/texts.yaml
More music installations (all of it, maybe even.)
Deprecate download-link.  Use file-locations instead.
Use relative URL's for MP3 file-locations.
Fix W.i.t.i.d.E index.  Sort of.
Simplify online-buttons a little.
This is template-y, so remove it.