#229 Ask which move when multiple are posibble

[Mateo Duran]

By default the viewer plays the main line move when pressing forward arrow. It would be nice if its ask which move you want to play when there options, like on chess.com, you select it with the arrow. It can even be pair by highlighting the move on the board when shufflling between the options.

[Jens Nissen]

Ticket moved from /p/chessx/bugs/354/

[Jens Nissen]

There is a selection list in the Annotation pane. I actually do not like modal dialogs as they intercept the flow when strolling through a game. You can also switch through parallel lines by pressing and <up> or <down> to get to the next / previous variation.</down></up>