stamp-cache is a PHONY target

Both in installed and non-installed mode

This reverts commit b1aa3f58.

This should make the upnp module compile on Win32
Should Close #4108

Ref #4108

Ref #4108

I obviously didn't had the latest.tar.gz

Should close #3536

Close #3944

https://bugs.gentoo.org/show_bug.cgi?id=333723

 * fetch the list of video for one item only if required
 * use the provided thumbnail if available.

There still are some formatting issues (e.g. --cdda-track)

This reverts commit 10d0f724.

add needed header to fix build
process all config items
process all items of config lists (off by one)
fix display of lists: some option have a space in their name