Minor optimization of HQ stream start requests.
Renames timeout() to maybeTimeout().
Minor logging improvement.
Fixes previously receiving simulcast layer timeout.
Renames variables, constants and methods.
Fixes typos.
jitsi/libjitsi commit 05c1278: Makes it possible to specify an AES implementation provider. FMJ revision 83: Fixes a possible busy wait.
Removes unused stop on postrm and prerm.
Moves some instructions in debian package from remove to purge.
Removes prerm, it doesn't do anything and if not specified is generated by default.
Updates debian standards version.
Migrates jitsi-videobridge config file.
Fixes lintian warning.
Major refactoring of the SimulcastManager.

- Renames ReceivingLayers to SimulcastReceiver
- Renames ReceivingSimulcastOptions to SimulcastReceiverOptions.
- Moves much of the functionality to the SimulcastReceiver.
- The plan is to further split the simulcast manager by introducing a SimulcastSender.
Fixes warnings.
Implements smart simulcast layer escalation.
Ups libjitsi.jar@8dd83b6 that fixes a deadlock in the SctpSocket.
Be lighter with synchronized blocks.
Ups libjitsi.jar@37b6fd that adds an isWarnEnabled() method to the Logger.
Sanitizes logging.