### What problem does this PR solve?

Related source file is in Windows/DOS format, they are format to Unix
format.

### Type of change

- [x] Refactoring

Signed-off-by: Jin Hai <haijin.chn@gmail.com>

### What problem does this PR solve?

support reset the user email from old to new
#1723 

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

### What problem does this PR solve?
add password reset function by extending the Flask command. #1200 

### Type of change

- [x] New Feature (non-breaking change which adds functionality)