Coded bounce filter which returns all packages unprocessed, not sending any package...

Coded bounce filter which returns all packages unprocessed, not sending any package further down the row. It sets Z3959 packages to Z_Close, and HTTP_Request packages to HTTP_Response err code 400 packages, and adds suitable bounce message.
Added bounce filter at end of each filter chain config.xml to prevent infinite hanging of for example HTTP requests when only Z3950 client filter is configured.