add set password to edit modal

First off, thank you for sharing this with the community. It has helped get my project moving faster. So major kudos to you!

I needed to be able set user passwords. So I added a field and inline button to the edit modal. Seemed the best place to put it. I tried to follow the coding style and spirit as much as possible.

I wasn't sure how you envisioned handling alerts and I couldn't find anything specific so I just did an alert() if no password was entered. I think an inline alert would be nicer, but I'm not sure which style you'd want to use. A few ideas:

http://getbootstrap.com/components/#alerts
http://getbootstrap.com/css/#forms-control-validation

Thoughts?