Rename BrowserID --> Persona

[snej]

"Persona" is now the official name, "BrowserID" is obsolete/deprecated.

[jchris]

I'm not sure about this. I think BrowserID is the protocol, and Person is Mozilla implementation of it.

https://developer.mozilla.org/en-US/docs/Persona/Glossary

[snej]

No, I just heard otherwise from a Mozilla guy:

From: Mozilla Mail <dwalkowski@mozilla.com>
Subject: Re: Persona iOS SDK
Date: March 19, 2013 11:16:56 AM PDT
To: Jens Alfke <jens@couchbase.com>

Jens,
It's Persona all the way down. BrowserID was the old, and not fully eradicated name. 

Regards,
Dan Walkowski