assembly updated to deal with Qt libraries and discrete codec and imageformat
plugins (which live under bin/llplugin).  Functioning Linux viewer with MoaP
support with a few image problems (sRGB profile, zlib errors).  Much of this
expected to be due to the new 1.6.8/1.2.8 libpng/libz and we'll fix as needed.

openssl on Mac (copy, deploy).  Revert Linux manifest work which tried
to work around 0555 permissions on .sos (and didn't work).

strip those down for packaging.  So we'll target those .so's for a chmod.

SDL to 1.2.15, c-ares to latest 1.10.0 build, Boost to 1.55.0
with coroutine updates/fixes, curl to 7.34.0, libpng to 1.6.8,
openssl to 1.0.1e, zlib to latest 1.2.8 build, llqtwebkit
built from 4.7.1 sources refactored and tested in 3p-llqtwebkit2
repository.

Windows is functional with a good number of warning messages
at runtime from libpng and KDU.  MoaP/slplugin functioning.

Copy3rdPartyLibs needed to copy the now-corrected fmodexL libraries
and it had a bad library reference on Linux for release.  In
llaudio land, the audio engine interfaces, even the fmodex
specializations, seem to want to be external-structure free
so use a forward declaration and pointer to FMOD_DSP_DESCRIPTION
and deal with it in the ctor/dtor.

Two problems found in DLL involving threads.  First, DllMain
was reinitializing a critical section for all entry reasons
(process attach, detach and thread attach, detach).  Should
only be done on process attach.  Second, static container
object was being modified and accessed without serialization.
Added some double-check locking to the initialization path
to reduce the total number of serialization calls made while
making the code thread safe.

- Removed logging for MAINT-3555
- Added NULL guard to fix MAINT-3703 (hopefully)

 - LLFloaterView::mToolbarRects[3] was transformed to LLRect mToolbarLeftRect, mToolbarBottomRect, mToolbarRightRect;

about the return type for calls to LLView::getParent(): never assume a down
cast is possible.

- Removed a lot of logging code to reduce application close time