lower disconnect timeout and disable away on cordova
lower disconnect timeout and disable away on cordova

The Meteor.disconnect() timeout cannot be too high or it may be not run because
the application is already sleeping.

setAway was commented because having a small time interval frame with own
status set to away will interfere with call receveing.

VoiSmart/Rocket.Chat,VoiSmart/Rocket.Chat,VoiSmart/Rocket.Chat