Does not return null and empty object to client.
Does not return null and empty object to client.

Does not return null and empty object to a client that reduced json
size approximately by 10%.

golozubov/freefeed-server,golozubov/freefeed-server,pepyatka/pepyatka-server,SiTLar/freefeed-server,FreeFeed/freefeed-server,SiTLar/freefeed-server,davidmz/pepyatka-server,FreeFeed/freefeed-server