updated host file
accept button is disabled if no links are selected
exit silently if user cancels the link selection

there was an ugly exception before
message to alert the user that there is nothing to download
function to serialize XML documents
blacklistService (read/write blacklist file)
req_objs check
blacklist check before adding new requests to the list
blacklist patterns are case insensitive
check the blacklist only for valid URLs

it's faster
function to show the blacklist editor
blacklist editor entry added to the main menu
blacklist update on each run
new locale messages for the blacklist editor
dtd blacklist editor files
blacklist editor interface (initial version)
new maxVersion number

it seems safe to change maxVersion to 21
Fixes to BlackList code...

...assuming:
- BlackList check on embedded images is an oversight
- BlackList item is not for only one and single 'url'

Signed-off-by: Rookie <Thierry@evo-n600.(none)>