Rename al_stream_init_file -> al_stream_init_filename
Add al_stream_init_file() to use existing FILEs
Use uint32_t for AlDataTag
Add AL_TOKEN_EOF and detect EOF in al_data_read()
Add aldatashow to pretty print data files for debugging
Print strings correctly
Merge branch 'master' into sdl2
Add al_fs_chdir_app_data() since SDLMain isn't there to do it for us anymore
Set working directory as part of host_systems_init()