make the DefaultSASFHelper serializable to avoid the exception:
java.lang.IllegalArgumentException: setAttribute: Non-serializable attribute S_SASFHelper
see http://code.google.com/p/socialauth/issues/detail?id=313 for details
Updated CONTACTS_URL and PROFILE_URL to include versioning parameter. See https://developer.foursquare.com/overview/versioning
Merge branch 'issue313' of https://github.com/chatch/socialauth into chatch-issue313
Added space
Changes in YahooImpl to make api https
Serialized SocialAuthTemplate