digikam: Upgraded to 4.1.0.

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackware-id.org>
filezilla: Upgraded to 3.8.1.

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackware-id.org>
guvcview: Upgraded to 1.7.3.

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackware-id.org>
opencv: Upgraded to 2.4.9.

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackware-id.org>