* DE-LAGIFY: New entityState->eventIndex so we can send events with an extra value without creating a whole new entity each time.
* DE-LAGIFY: eventParam's can now be much larger (to suit new sounds and models max).
* DE-LAGIFY: Speedups for any G_EntitySound and G_SoundOnEnt usage. There's a LOT of them!!!
* Fixed entities playing the wrong sounds.
* Fixes and speedups for NPC conversations.
Merge branch 'rend2' of https://github.com/Stoiss/OpenJK into rend2