Release Name: 0.9.2

Notes:
ObjectiveFlickr 0.9.2 (Ruby) is a minor release, the most important addition being the support for Flickr's new photo URL format (the "farm id," now required for newly uploaded photos since the announcement). Other changes lead to a cleaner code and style. Refer to this release's change log for detail.


Changes:
* Added support for Flickr's new "farm" part newly found in its photo URLs

* Your code needs no change, everything will just work, including
  those photo URL/div id helpers, but on the other hand...
  
* Deprecated methods in FlickrInvocation:

  * photo_url(params)
  * photo_div_id(params, prefix='photo')
  * photo_url_from_div_id(uid)
  * photo_info_from_div_id(uid)
 
  Those are methods that should never go into an invocation object.
  Instead they belong to a helper, so:

* Created a FlickrPhoto module

  FlickrPhoto.url_from_hash(params)
  FlickrPhoto.unique_id_from_hash(params, prefix)
  FlickrPhoto.url_from_unique_id(uid)
  FlickrPhoto.hash_from_unique_id(uid)

  Those helper functions now take place of their deprecated
  predecessors.
  
* Before :server_id and :server were both accepted hash key
  for the "param" in those helper functions, now only :server
  is accepted. This is in accordance with Flickr's own
  naming convention.
  
* You no longer need to set :auth=>true if you already supply
  an :auth_token parameter when you make Flickr method calls.
  Since :auth_token always implies that the call must be
  authenticated, ObjectiveFlickr is happy to save a few strokes
  for you. :)