Notable changes:
- Client now starts seeding content when it receives it from the injector
- Add Cache-Control field to the list of non-private fields
- Enable multicast on Android
- Enable IPNS PubSub
- Add option to serve client's front end on a separate endpoint
- Show current time in client's front end
- Disable showing pending tasks in client's frontend
- Android browser can now also show client's frontend
- Thread safe Java_ie_equalit_ouinet_Ouinet_nSetCredentialsFor