`yii\widgets\Breadcrumbs` enhancement. Allow link to have its `ownTemplate`
CHANGELOG.md update
`ownTemplate` => `template`
re `ownTemplate` => `template`
CHANGELOG.md fix
CHANGELOG.md fix
Upgrade of the code
Merge pull request #3926 from umneeq/yii-widgets-breadcrumbs-enh

`yii\widgets\Breadcrumbs` enhacement