Remove params parameter from exec function

[ar1k]

As exec is not a part of Statement (https://github.com/TryGhost/node-sqlite3/blob/master/src/statement.cc#L17), but a part of Database itself (https://github.com/TryGhost/node-sqlite3/blob/master/src/database.cc#L21), it does not support params binding. So, we should not expose params to the exec public interface here. Also, this corresponds to node-sqlite3 API docs (https://github.com/TryGhost/node-sqlite3/wiki/API#execsql--callback).

[theogravity]

Thanks, looks good. I'm going to bump a major version as this is a breaking change even if it's invalid.

[Cellule]

Could this be documented in the CHANGELOG.md file ?
It's very confusing to figure out what's the breaking change

[theogravity]

It is documented, but should have been called out as a breaking change. I'll update this.

This project follows semver rules. Assume any major version bump may have a breaking change.

[Cellule]

Thank you for the updated changelog, it will make it easier for people to update with confidence 😊