2.86
fix many warnings remove btMultiSapBroadphase.* make collisionFilterGroup/collisionFilterMark int (instead of short int)
add zlib/minizip so we can load compressed data (github/git is bad in handling large binary files)
Fix clew.c link errors
fix shadowmap crash on some Intel GPUs, see https://github.com/bulletphysics/bullet3/issues/4 remove targetdir from all libraries in premake, so it is much easier to create a separate folder for all binary+lib transmit the serialized btMultiBody data back from server to client, after the server loads a URDF file. This includes base+link+joint names tweak the serialization routines, so it is easier to skip pointers and to serialize directly to a shared memory buffer also tweak the serialization code to allow to process data without 'DNA' schema data (assuming file-DNA = memory DNA)