Implements more aggressive dropping of RTP packets in case the respective RTP packet queue is full in order to increase the chances of decreasing the drop rate over time and, consequently, bettering the audio quality. Extracts the RTP packet queue statistics into their own class as a first step in refactorying the RTP packet queue/jitter buffer implementations for the purposes of reducing code complexity.

git-svn-id: http://svn.code.sf.net/p/fmj/code/fmj@27 799b4810-d841-4bb4-a54b-9156a0c3e4cd

Conflicts:
	src.rtp/net/sf/fmj/media/rtp/JitterBufferStats.java
	src.rtp/net/sf/fmj/media/rtp/RTPSourceStream.java
	src/javax/media/control/PacketQueueControl.java
NOTE: This code doesn't compile because I've not removed my JB changes.
This commit favours the upstream changes
Implements shrinking of the audio RTP packet queue/jitter buffer. Refactors the functionality related to the RTP packet queue/jitter buffer further for the purposes of readability.

git-svn-id: http://svn.code.sf.net/p/fmj/code/fmj@28 799b4810-d841-4bb4-a54b-9156a0c3e4cd

Conflicts:
	src.rtp/net/sf/fmj/media/rtp/AudioJitterBufferBehaviour.java
	src.rtp/net/sf/fmj/media/rtp/BufferControlImpl.java
	src.rtp/net/sf/fmj/media/rtp/JitterBuffer.java
	src.rtp/net/sf/fmj/media/rtp/JitterBufferBehaviour.java
	src.rtp/net/sf/fmj/media/rtp/JitterBufferStats.java
	src.rtp/net/sf/fmj/media/rtp/VideoJitterBufferBehaviour.java
NOTES: Again, this prefers all upstream changes (using the whole files).
So code, still doesn't compile.
Missed merge of BufferControlImpl
Remove files that are now unused and comment out enough code to get it to compile.
Pick up vanilla FMJ changes that were somehow missed in previous merges.

Current changes should now be limited to:
* Refactored RTPReciever - which does contain some behaviour changes.
* Some additional logging
* Additional (but unused) files.
	JitterBufferTester
	JitterBufferCharts (and jchart2d jar)
	RTPSourceStreamTest (and TestDataSource)
	ConfigUtils (is it still used?)
* A large number of unused files (and the corresponding .classpath and build.xml changes)