- Creates an AbstractRTCPTerminationStrategy that takes care of all the
  boilerplate code for RTCP termination strategies and shall serve as a
  base for all RTCP termination strategies. This newly introduced class
  acts an RTCP compound packet transform chain. Inheritors can add
  transformers to that chain and generate RTCP reports.
- Moves the receiver feedback filtering functionality from the
  BasicRTCPTerminationStrategy into a new ReceiverFeedbackFilter class
  (a specialized RTCP compound packet transformer) so that it can be
  reused more easily.
- Moves the feedback cache updating functionality from the
  BasicRTCPTerminationStrategy into a new FeedbackCacheUpdater class (a
  specialized RTCP compound packet transformer) so that it can be reused
  more easily.
- Merges the ReceiverReporting class into BasicRTCPTerminationStrategy.
- Refactors the BasicRTCPTerminationStrategy and the
  HighestQualityRTCPTerminationStrategy as specializations of the
  AbstractRTCPTerminationStrategy.

blocking if we try to send too much through a TCP socket.

Removes a restriction on the use of PulseAudio devices based on a particular sample format reported by GitHub user agh1467. Removes "superflous" source code reported by "Matt" in the comments of GitHub pull request #36 "Remove condition for S16LE sample format".

Adds specific package version dependencies for the debian src package. Fix some copyright missing definitions.

This prevents any device registered as a different format from
showing up in the device list.