fix wx_user inner_no

go/gopath/src/fohow.com/apps/models/user_model/three_wx_user.go

@@ -195,9 +195,9 @@ func NewAvailableIntroArea(wxUserId, inviteRank int64) (string, string) {
 		WHERE
 			invite_id = ?
 		AND
-			invite_rank > ?
+			invite_rank >= ?
 		AND
-			invite_rank <= ?
+			invite_rank < ?
 		GROUP BY
 			intro_area 
 		ORDER BY