Andreas Traczyk authored Oct 07, 2016 and Andreas Traczyk committed Nov 07, 2016

- adds exetended execution after quitting
- hangs up calls upon quitting
- cleans camera objects on termination
- only fades loading screen when last account is registered

Change-Id: I50336c43690c0d7dc38377ea846cedddfc3f0f44
Tuleap: #1208