New energy slider for fast scrolling over open frames.

Signed-off-by: Nicola Ferralis <feranick@hotmail.com>
Energy slider follows the image senquence during acquisition.

Also it is disabled during acquisition.

Signed-off-by: Nicola Ferralis <feranick@hotmail.com>
Energy slider is reset upon "restart"

Signed-off-by: Nicola Ferralis <feranick@hotmail.com>
Updated README.md (new contact info)

Signed-off-by: Nicola Ferralis <feranick@hotmail.com>