fix missing or incorrect viewer components

Add the png files used by the WICS viewer and fix the links in wics.js
that did not yet point to the ".WICS" subfolder.
explain share directory in programming guide

The share directory was added to deliver WICS viewer code, so it needed
to be explained in the relevant section in the programming guide. Also
regenerate the HTML version.
fixes to pass release testing

perlcritic, distmanifest, Changes, and portability tests all failed,
so fix them before releasing.
New release of ITS-WICS - v0.04

    Added support for WICS project directories.