加好友判断修改，userlist查询位置，距离添加range过滤，优化数据库距离排序，优化加好友界面，图片墙加头像、是否已在、图片列表等字段，帖子列表去掉isRatio字段
Merge branch 'dev' of https://github.com/appbyme/mobcent-discuz into dev
Merge branch 'dev' of https://github.com/appbyme/mobcent-discuz into dev