Bugfixes
Fix rendering of decals and polygons
Comment out a few Com_Printf lines
Add simple multi threading library

Win32 only so far, will add pthread implementation later
Initialize and shutdown the threads subsystem
Use threads to asynchronously resolve hostnames for masterservers
Add threads lib for unix platform
Compilation fix for *nix
Hush a few more prints
Run the app at double cinematic framerate to prevent sound mixing issues
Use real protocol number
Add missing files to MSVC projects
Force crosshair image size to 32x32 pixels
Indicate we're to bind an alternative key
Use separate factory for const strings to reduce the number of alloc/free calls
Constify strings
Fix MinGW compilation errors
More const qualifiers
Update to WIP AngelScript 2.28.1
Fix objectString_AddString