2.19.0 * Add PersistedModel.createChangeStream() (Ritchie Martori) * Remove trailing whitespace from jsdoc (Ritchie Martori) * Update model.js (Rand McKinney) * Downgrade version of loopback-testing (Ritchie Martori) * Auto-configure models required by `app.enableAuth` (Miroslav Bajtoš) * Add loadBuiltinModels flag to loopback(options) (Miroslav Bajtoš) * Add a unit-test for searchDefaultTokenKeys (Miroslav Bajtoš) * access-token: add option "searchDefaultTokenKeys" (Owen Brotherwood) * Fix the test case (Raymond Feng) * Fix code standards issues (Tom Kirkpatrick) * Add test case to highlight fatal error when trying to include a scoped relationship through a polymorphic relationship (Tom Kirkpatrick) * add callback args for listByPrincipalType to jsdoc comment, pass explicit arguments to callback (Esco Obong) * mark utiltiy function as private (Esco Obong) * fix linting errors (Esco Obong) * fix lint erros (Esco Obong) * consolidate Role methods roles, applications, and users into one, add query param to allow for pagination and restricting fields (Esco Obong) * fix implementation of Role methods: users,roles, and applications (Esco Obong)