implement proper IRQL, DPCs, kernel and user APCs, alertable waits, async file I/O with cancellation, trap frames, selftests, a real driver/device model, native async FAT32, VFAT dotfile fixes, syscall ABI cleanup, async_apc and async_cancel tests, POSIX multi-volume paths, and pimp the readme.

code/posix/posix_dir.c

@@ -65,6 +65,6 @@ __declspec(dllexport) struct dirent* readdir(DIR* d) {
 __declspec(dllexport) int closedir(DIR* d) {
     if (!d) { errno = EBADF; return -1; }
     SysCloseHandle(d->KHandle);
-    SysFree(d, sizeof(DIR));
+    SysFree(d);
     return 0;
 }