Fixes an issue of overlapping videos which could cause the local video in a call to be displayed bellow the remote video. Works on remedying issues with telephony conferences utilizing the Jitsi VideoBridge server-side technology.

git-svn-id: https://svn.java.net/svn/jitsi~svn/libjitsi@10281 198c5059-ef06-4ec0-9a75-fdd6b0ef00a6
Provides compatibility with r       [dx] UNEXPECTED TOP-LEVEL EXCEPTION:

git-svn-id: https://svn.java.net/svn/jitsi~svn/libjitsi@10284 198c5059-ef06-4ec0-9a75-fdd6b0ef00a6
Restores black background in video calls (which got recently broken/removed).

git-svn-id: https://svn.java.net/svn/jitsi~svn/libjitsi@10286 198c5059-ef06-4ec0-9a75-fdd6b0ef00a6
Merge Metaswitch fixes

r615
Stop stack traces being logged when write() is called without a target (which can be valid, according to comments) as log files are getting spammed.
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r595
Code review mark-ups for improved config logging.
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r509
Correction to r508: imports shouldn't be corrected from * change logging level of config changes to INFO
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r508
Add logging of the initial config on startup, and all changes
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r446
Reduce maximum resolution and framerate to allow interop with the mobile client.
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Log the first second of media and then one packet per second after that.
Commiting proposed fix to bug 452 to temporary branch to create a patch for code review.
Add some logging from TJLP for bug #250
Add missing import
Add some logging from TJLP for bug #250
Add missing import
Add logging to AudioMixer so we can see why on no-way media calls we get on one call to addInputDataSource
Add some logging from TJLP for bug #250
Add missing import
Add some logging from TJLP for bug #250
Add missing import
Fix up merge problems
Add some logging from TJLP for bug #250
Add missing import
Add some logging from TJLP for bug #250
Add missing import