change name of zeroconf prefs to modify account

don't use account's name but is_zeroconf flag for checks

display notification

otherwise checkbutton is not sensitive

fix dragging of files to local contacts

add log messages for zeroconf,
refresh name changes of roster items (on resolve)

don't publish empty txt fields

zeroconf connection

				updates)

remove button in acct window disables acct

set properties, when account is initially
created

change global account variable

startup

properties window fixes,
use all fields from it in txt record,
saving prefs automatically reconnects

added tooltip to it

established by us

inactivity
set timout on connect attempts
transleted russian comment