updated host file
source URL added to the request details window
Merge branch 'master' of https://github.com/websurfer/ImageHost-Grabber.git
In 'HostFile Editor' dialog, the 'fillTBs' event handler is moved
from the menuitems in the list to the menulist itself.

Events triggered by buttons become 'command' i.o. 'click',
as the click event is not impeded by the 'disable' attribute.

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