tql update: con is now set only on host which are online

TQL

@@ -19,6 +19,7 @@ seblu> list r=vm^5:10           #list vm
 seblu> list r=vm%vm             #list vm sorted by vm
 seblu> list r=vm%vm%cpu         #list vm sorted by vm and cpu
 seblu> list r=vm&-cpu           #list vm without tag cpu
+seblu> list a-con          		#list disconnected account
 
 == Basics ==
 - TQL build a list of objects in one query
@@ -80,7 +81,7 @@ id: object unique identifier (eg: kvmlab-1.test5)
 a: account name (eg: bobby)
 r: account role (host/hv/vm/cli/web/spv)
 closed: account close status
-con: connection uptime in seconds or offline (eg: 3600)
+con: connection uptime in seconds (eg: 3600)
 ip: ipv4 of connection
 
 == well known tags ==