Version 25.0 launch release

This is not a "stable" release version, but it is what has gone live on production just now. Given that, I will mark it as a pre-release version for now.

New major production releases like this often will have bugs for the first three weeks. You may find using the develop branch, with its nightly updates, to be the better branch to use until a stable version is available, or using a past stable version. This version has undergone incremental testing on the alpha-hosted version of VDO.Ninja for the past three months without serious issue.

IN THIS RELEASE

• major improvements to &chunked mode
• &viewslot=N
• &ln=auto
• &q=4k added
• higher default bitrates for 1080p
• a lot more.

Thank you.
~ management