添加推送昵称
Merge branch 'develop' of https://github.com/easemob/sdkexamples-ios into develop

# By jifang1218 (1) and winterSleep (1)
# Via winterSleep
* 'develop' of https://github.com/easemob/sdkexamples-ios:
  修改 排序错误的bug
  update isAutoLogin property.