Best practices for handling backgrounding

[aoberoi]

We need to document what the observed behavior is for the application going into the background on the android and ios platforms. Given that, we also want to document how we recommend implementing solutions to common problem scenarios. This discussion is open to thoughts on enhancing the opentok.js API.

[mark-veenstra]

Since >iOS9 the behaviour is the same as in Android >5.x as we have tested. For example on both platforms we got a disconnect on our socket server when the app is going into the background.

Also Cordova has the events pause and resume