* Fix the idType so that it works with both MongoDB and RDBs (Raymond Feng)
* Tidy up tests so that they will work with RDBs (Raymond Feng)
* Fix JS style issues (Raymond Feng)
* Add a new property option `defaultFn` (Miroslav Bajtoš)
* Fix the null/undefined check (Raymond Feng)
* Fix createdAt type so that it won't overflow SQL server int (Raymond Feng)
* ModelBaseClass: promise mode for notifyObserversOf (Miroslav Bajtoš)
* ModelBaseClass: support promise-based observers (Miroslav Bajtoš)
* use lodash to update the findBelongsTo which now returns an array of matches (Bryan Clark)
* Add $now as shortcut default value for date property (Pradnya Baviskar)
* Fix `deleteById(id)` and other test failures (Miroslav Bajtoš)
* Add an optional `options` argument to all CRUD methods (Raymond Feng)
* Upgrade deps (Raymond Feng)
* Remove workaround for perfomance degradation (Denis Bardadym)
* Change equal to eql to support mongodb ObjectID (Raymond Feng)
* Enhance the coercion for boolean/date types (Raymond Feng)
* Make sure base properties/settings are merged into the submodel (Raymond Feng)
* support optimized findOrCreate (Clark Wang)
* Fix the perf around should.not.equal for complex objects (Raymond Feng)
* testcase for #420 (Andrey Loukhnov)
* use findOrCreate in hasOne#create (Clark Wang)
* Create model foreign key matching type of opposite part of relation (even if it has a custom field type) (Andrey Loukhnov)
* minor formatting issues (trailing spaces and such) and .editorconfig (Andrey Loukhnov)
Raymond Feng
Miroslav Bajtoš