Problem in ICO file handling

The background image library https://ftsoft.com.cz/pictures/pictures.html had severe problems with not fully tested ICO file handling. These problems are fixed now, but the code will be propagated to WP2LaTeX 4.10. The workaround is included in WP2LaTeX 4.9b.

The workaround is to edit a file wp2latex-XXX\sources.cc\images\imgsupp.h.in and set SupportICO to 0 on several places:
#define SupportICO 0
this will block rarely used piece of code.