[sldev] FMOD version used in official viewer

[Tim 't Hart]

I recently compiled version 1.20.17 of the viewer and everything is working
great. However, when I run the compiled exe from the normal viewer
installation folder, I get a warning about a version mismatch caused by
FMOD. The warning is as follows:

WARNING: LLAudioEngine_FMOD::init: Error : You are using the wrong FMOD
version (3.74)!  You should be using FMOD 3.75

When compiling my version of the viewer, I indeed used the latest FMOD 3.75
sources (which is the most recent v3 of FMOD). But the version of fmod.dll
supplied by LL is version 3.74 (161280 bytes), so that explains the warning.

However, JIRA entry VWR-1437 seems to suggest that LL was/is indeed using
3.75 of FMOD. So my question is: Why is LL now shipping a 3.74 version of
the library? Did you convert back to using 3.74? And if so, should we be
doing the same? Or have you just mistakenly shipped an old version of the
dll with the viewer?