group-chat-manager/demo.js: fixed inviteParticipant
group-chat-manager/demo.js: fixed inviteParticipant

reTHINK-project/dev-hyperty,reTHINK-project/dev-hyperty,reTHINK-project/dev-hyperty,reTHINK-project/dev-hyperty,reTHINK-project/dev-hyperty