fix SDL.keyboardState size to add safe buffer zone
use 64-bit alignment for double writes in le32
use full alignment in varargs
check sanity later in test runner, so we can know env settings, and do not needless tear down le32 stuff
ensure floats in varargs
guard against exceptions in connect(), which can happen due to e.g. security violations for websockets
fix test_firstrun
fix sanity.test_emcc
fix test_runtimelink
update test_structbyval
1.4.2
only emit aborting function stubs on undefined symbols in asm mode
First pass at buffer queueing