Bug#1100083: pixelmed-www: creates files in /webstart under root directory

[cacin]

Package: pixelmed-www
Followup-For: Bug #1100083

I meant to say .html files, not .desktop files, they should likely
belong in the /usr/share/pixelmed/ directory, and editing the
debian/pixelmed-www.install file is the way of solving this.