Make PasswordIsValid public

[tranb3r]

Hi, I'd like PasswordIsValid to be public. Indeed, I'm using PasswordGenerator for password generation, but I also need password validation for another use case. Password validation is implemented in PasswordIsValid, but it's private. If think it wouldn't hurt to make it public. What do you think? It's a very little change. Thanks

[prjseal]

Hi Good idea. Fine with me. I'll do that and release an update later.

Kind regards

Paul