FIXED: [bug] UMengSocial 2.0.0 & 2.1.2

Signed-off-by: yiyuanlu <luyiyuan129@gmail.com>
ADDED: UMengSocial 2.1.3

Signed-off-by: yiyuanlu <luyiyuan129@gmail.com>
Merge pull request #2294 from umeng/master

ADDED: UMengSocial 2.1.3 and FIXED: [bug] UMengSocial 2.0.0 & 2.1.2