add error listener for consoleservice

Change-Id: I0a80e65661f8687c46f661ef0be8b01be914f1f6
add ping for disconnect

Change-Id: I42328ac7b828577878ae080aee030872444371a3
Merge "add error listener for consoleservice"
Merge "add ping for disconnect"
add sio conf options
Merge pull request #454 from roytan883/confsio

add sio conf options
Merge branch 'master' of https://github.com/NetEase/pomelo