defensive code
SEND(text)하고 update에서 쿼리 정상임.
[rough] send/receive text 기능 구현
targetID와 targetName로 구분지음.
binary good
index increased
move 'sending packet' logic to other member functions
added 'lastTime'.
Merge branch 'gettingFriendList' into develop

Conflicts:
	SSUM/CRDlg.cpp
	SSUM/SSUM.rc