Mongoz

Added

- [exists()](./queries.mdexists) allowing to query for a document existance in the database.

Fix

- Native `decimal.Decimal` internal convertion to `bson.decimal128.Decimal128` to updates.

Fix

- Convert decimal to Decimal128 was causing issues for insert lists.

Fix

- Native `decimal.Decimal` internal convertion to `bson.decimal128.Decimal128`.

Added

* PT Translation by tarsil in https://github.com/dymmond/mongoz/pull/39

Fixed

* Fix regression with collection name by tarsil in https://github.com/dymmond/mongoz/pull/41

**Full Changelog**: https://github.com/dymmond/mongoz/compare/0.9.0...0.10.0