* Fix all revive warnings in the code base
All of these are of the form
```
var Identifier Type = Expr
```
where the `Type` is known from the output of `Expr` and can be omitted
as a result.
* Handle unchecked errors
* Remove new-from-rev
Since the project passes all linter checks now, including older
revisions, we can remove new-from-rev. While here, reorder the linter
config file, and move the enabled linters up and settings down.
* Fix failing test cases
Studio & Performer export tests use local time rather than UTC. This
fixes the test cases so integration test
passes.
