SmugMug in README. Camelize special in core.

README.markdown

@@ -28,6 +28,7 @@ OmniAuth currently supports the following external providers:
   * TripIt (credit: [flextrip](http://github.com/flextrip))
   * Meetup (credit [coderoshi](http://github.com/coderoshi))
   * SoundCloud (credit: [leemartin](http://github.com/leemartin))
+  * SmugMug (credit: [pchilton](http://github.com/pchilton))
 * OpenID
 * Google Apps (via OpenID)
 * CAS (Central Authentication Service) (credit: [jamesarosen](http://github.com/jamesarosen))

oa-core/lib/omniauth/core.rb

@@ -60,7 +60,8 @@ module OmniAuth
       'open_id' => 'OpenID',
       'github' => 'GitHub',
       'tripit' => 'TripIt',
-      'soundcloud' => 'SoundCloud'
+      'soundcloud' => 'SoundCloud',
+      'smugmug' => 'SmugMug'
     }
 
     module_function