Fixes -Wmaybe-uninitialized warning.

Signed-off-by: Nathan E. Egge <negge@dgql.org>
Fixes build warnings in jpegyuv.c and vq_train.c.

Signed-off-by: Nathan E. Egge <negge@dgql.org>
Add configure flag to only dump reconstructed video.

Signed-off-by: Nathan E. Egge <negge@dgql.org>
Remove need for --enable-logging in rd_collect.sh.