Lean Mapper Query 1.0 (finally)

Lean Mapper Query has been tested in production for a couple of years now, which is long enough to be able to declare it stable enough for releasing version 1.0. There are no BC breaks (apart from raising the minimal required Lean Mapper version), nor are there any other significant changes.

Notes

• This release includes just one bug fix that required raising the minimal required Lean Mapper version to 2.3.
• Another change worth mentioning is throwing an exception when trying to iterate over LeanMapper\Query.

Thanks

I would like to thank @janpecha for his contributions to this project as well as for his help with releasing this version.