Add Weibo support for Play/SecureSocial 2.1
Add Weibo support for Play/SecureSocial 2.1
Merge branch 'master' of github.com:qiuzhanghua/securesocial into qiuzhanghua-master

Conflicts:
	samples/scala/demo/conf/play.plugins
Merge branch 'qiuzhanghua-master'
- Pull request #159: Weibo support (thanks @qiuzhanghua and @wuhaixing)
- Renamed scala demo project
- ListMap instead of Map to preserve iteration order in the providers list.