Firefox mediaConstraints update


I see just now the licode update for Firefox with new mediaConstraints for

I suppose that it came to solve this Firefox bug:

But I thing this is an update only for Firefox +32 so, after this update,
when we create a SDP in Firefox 31 or less it could have a wrong behavior,

I think we need build some If-else estament for select the correct
mediaConstraints format.

Best regards,

Toni Paricio.