target servers had been able to see search words from the referrer of the favicon fetch.
This has been removed by using the getImage - servlet for favicon fetch.
Since java does not support loading of bmp and ico-Images, such parsers had been added.
The image parser had been coded from their original microsoft documentation.
This influences also the image-search functionality: there can now be a preview
of found bmp-images. Another benefit: favicons for search results are now cached with the HTCACHE.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3965 6c8d7289-2bf4-0310-a012-ef5d649a1542
