Fix magnet download dialog

Signed-off-by: Mike Beattie <mike@ethernal.org>
update comp.sh to build crx files too (and use *nix zip, not 7z)

Signed-off-by: Mike Beattie <mike@ethernal.org>
Merge pull request #4 from mjbnz/master

Fixed magnet dialog... and comp.sh for *nix.