Provide a method to retrieve account data for a given openid

[Anthony Lenton]

We currently provide an "account_by_email" method, but consumer sites often start off by having the OpenID identifier, not an email, for a user.

An account_by_openid method would be much quicker than having to validate a token for the user (if you even have one), instantiate a new service root with an oauth authorizer and calling the me() method, which is our only current option.

[Daniel Manrique (roadmr)]

Already fixed, added in revno 102:

------------------------------------------------------------
revno: 102 [merge]
author: Łukasz Czyżykowski <email address hidden>
committer: Tarmac
branch nick: canonical-identity-provider
timestamp: Tue 2010-11-09 23:11:17 +0000
message:
  Added api.authentications.account_by_openid(openid) method.
    ------------------------------------------------------------
    revno: 100.1.2
    committer: Łukasz Czyżykowski <email address hidden>
    branch nick: account-by-openid
    timestamp: Tue 2010-11-09 17:47:52 +0100
    message:
      Updated documentation with example usage of new method.
    ------------------------------------------------------------
    revno: 100.1.1
    committer: Łukasz Czyżykowski <email address hidden>
    branch nick: account-by-openid
    timestamp: Tue 2010-11-09 17:43:27 +0100
    message:
      Added new method to api.authentications, account_by_openid. It's almost the same as account_by_email.