Merge pull request #280 from felixonmars/dev

fix #279
set failed max count to 5

Signed-off-by: xiehuc <xiehuc@gmail.com>
fix modify_group remote call

Signed-off-by: xiehuc <xiehuc@gmail.com>
fix some bug

Signed-off-by: xiehuc <xiehuc@gmail.com>
msg upload picture overtimes limit

Signed-off-by: xiehuc <xiehuc@gmail.com>
add relink retry

Signed-off-by: xiehuc <xiehuc@gmail.com>
fix a bug

Signed-off-by: xiehuc <xiehuc@gmail.com>
remove auto_load_group option

Signed-off-by: xiehuc <xiehuc@gmail.com>
don't call LIST_REMOVE if group_leave message for user himself doubles for same group