Issue title: Customize default view files.
 Issue body: Hi. 
How do I customize the view files without modifying the original view files?
 Comments: 
 Comment 0: You read all the instructions?
 Comment 1: Found out how to do it.
{'source': 'GithubIssues', 'repo_name_with_owner': 'dektrium/yii2-user', 'issue_id': 93111777, 'repo_stars': 1145.0}