Enable parallel compilation in release builds
Get rid of double-free during application shutdown
Fix application title
Emit a slightly different error when trying to load an empty file as a model
Import Lua 5.2.2
Construct models from a list of chunky files rather than a single file

This is in preparation for loading RGM/RGO pairs, and for loading a list
of RGM/RGO pairs as specified in ABP files.
Support loading ABP files.
Ensure that an Object's name is always non-NULL
Add a few more hardcoded textures