[shim/f21] (9 commits) ...Fix logic to handle SetupMode efi variable.

[Peter Jones]

Summary of changes:

  00ae245... Update to 0.4 (*)
  6abd8c8... Fix a variable handling bug in 0.3/0.4 (*)
  57f3546... Update to 0.4 (*)
  732f24b... Update to 0.4 (*)
  fd458a3... Use a release url github generates automatically. (*)
  ba65b55... Update to 0.5 (*)
  fecdfb1... Fix a FreePool(NULL) call on machines too old for SB (*)
  7148df3... Fix a FreePool(NULL) call on machines too old for SB (*)
  70e23be... Fix logic to handle SetupMode efi variable. (*)

(*) This commit already existed in another branch; no separate mail sent