start at the correct place

Signed-off-by: Sébastien Boisvert <sebastien.boisvert.3@ulaval.ca>
Play a region works

Signed-off-by: Sébastien Boisvert <sebastien.boisvert.3@ulaval.ca>
can play regions in both directions

Signed-off-by: Sébastien Boisvert <sebastien.boisvert.3@ulaval.ca>
auto-play works

Signed-off-by: Sébastien Boisvert <sebastien.boisvert.3@ulaval.ca>
removed the "show debug info" button

Signed-off-by: Sébastien Boisvert <sebastien.boisvert.3@ulaval.ca>