Files in non-reviewable channels should not be marked as recommended

[dualspiral]

If a file is in a non-reviewable channel, then it should not be marked as recommended. It is currently the cas that they can be.

Thoughts on what could be done:

• Recommended builds should always be candidates for review, and should ignore the channel flag
• Files in non-review channels should not have the option to "set recommended"
• A file that is set as recommended and then marked as non-reviewable should have the recommended flag revoked

I don't know if a file must always be recommended, if so, the simplest approach is the first option. Depends what @progwml6 and @mbax think.

[mbax]

I like option one, except don't display recommendation to users until approved.