v4.13.0

MariaDB official support and several fixes and improvements.

Changelog

11bd52a Add a driver for MariaDB (#454)
32735d3 Add callback before validate (#450)
fa6cc2d Adding model comment (#490)
83761d7 Bump version
6e21180 Improve has_many "missing field" error message (#480)
b5e47d5 Improve tests and documentation for UpdateColumns function (#451)
2a2287e Make SQLite URL parser aware of options (#481)
1d70017 Merge branch 'development'
f8da582 Move test data to testdata dir & remove unneeded Dockerfile (#452)
91c1962 Revert "Using ModelSuite for the generated model tests"
39043e3 Use db tag to customize ID field (#453)
d9c4e3c Use pkg name in tableMap for unique cache keys (#479)
d81c752 Uses ModelSuite for generated model tests (#489)
6602fc7 Using ModelSuite for the generated model tests