New voice for a bad answer

[Johnny Jazeix]

Hi,

Until now, for all activities we were using the voice "Check answer"
when we pressed the OK button and the answer was wrong.
Some contributors told us that it would better to have a voice "Try
again" that would work in most of the cases.

We just added it in the code (and if the voice is not present for the
language, we default to the previous "Check answer").

We plan to do a release soon (first week of December) that will
integrate it. If you have time to record the new voice for your
language, it would be great.

Cheers,

Johnny