Add away-notify support
Clean up away-notify patch
update man page

Close #498
Merge
Merge pull request #448 from TingPing/awaynotify2

Add away-notify support
Support account-notify and extended-join capabilities
Fix realname
renable irc_who_join by default
add %u to userlist popups for account
Add MONITOR support
Update hiding menu text
Fixed compiler error.
regular who doesn't send account
get account from whois
Merge branch 'hexchat/master'