Image loader pattern

Signed-off-by: Paul Brook <paul@nowt.org>
Merge branch 'master' into spaceinvaders
Use relative POST URLs

Signed-off-by: Paul Brook <paul@nowt.org>
Add port argument to spaceinvaders pattern

Signed-off-by: Paul Brook <paul@nowt.org>
Remove unused values

Signed-off-by: Paul Brook <paul@nowt.org>
Reject bad POST requests

Signed-off-by: Paul Brook <paul@nowt.org>