[Freeciv-Dev] Sound patch v4

["Per I. Mathisen" <Per.Inge.Mathisen@xxxxxxxxxxx>]

This is a small update. Changes since last patch:
 - fixed a bug that stopped most server-initiated sounds from playing
 - abused several more freelogs and asserts
 - added a single sound hook for tech advances. only one sound for all
   techs for now. i'll expand this if more sounds start showing up.
 - random sounds func removed since i can't imagine anyone using it, and
   i'd hate to add more dead code to freeciv (was great fun with aliens
   modpack tho)
 - removed sound hook on chatmsg (called too often to be useful)
 - several minor/cosmetic fixes

I'm starting to think it is inclusion-worthy. I still haven't figured out
Christian's bug tho. Mostly tested with SDL.

Christian: Can you try with this patch, as it contains more debug info,
and send me the results, again?

Yours,
Per

"Oil industry spokesmen dismissed as "absurd" and "nonsense" allegations
by aid experts, veteran East Africa analysts and several prominent Somalis
that President Bush, a former Texas oilman, was moved to act in Somalia,
at least in part, by the U.S. corporate oil stake." -- L.A. Times

sound8.patch.gz
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