Some profiles are REALLY pushing the schema

[stuartpb]

• centurylink.com needs a better description of its password rules.
• wibit.net appears to use either a onetime or randomized password, but is written like a reset flow site.
• For Verizon Wireless, I wrote "nondigits" as the "required" class for a username, but I'm skeptical that you can enter a username without letters, so I changed it to alpha. I might have been right initially, though, in which case this'll require some... rethinking.