fixes Foursquare versioning bug
Add the ACFacebookAudienceKey in the native facebook provider
Merge pull request #41 from alexito4/master

Support Facebook audience for system provider.
Merge pull request #40 from Yosee/foursquare-provider

Fixes Foursquare API version bug.
added SimpleAuthSingleSignOnProvider
Merge branch 'sso' of https://github.com/Yosee/SimpleAuth into sso
Change single sign on provider to protocol instead of class.
Add Sina Weibo web provider
update sample project with Sina Weibo web provider
Added Sina Weibo web to podspec
Updated Readme with Sina Weibo provider
Merge pull request #46 from aschuch/master

Sina Weibo web provider.
Move UI into platform-specific location to make way for OS X. #26.
Merge branch 'master' of github.com:calebd/SimpleAuth
Bump version.
Exclude UI directory from Core sub spec.