Vorbis needs more bitrate for input with higher sample rate/stereo
Merge pull request #375 from kepstin/recording-updates

Vorbis needs more bitrate for input with higher sample rate/stereo
Don't use the ffmpeg concat filter when only one audio segment

The concat filter requires at least 2 segments, it doesn't support
the degenerate case.
Explicitly use out0 in degenerate concat branch.

There is no i variable here, since there aren't multiple inputs to loop
over.
Merge pull request #376 from kepstin/recording-updates-merge

Recording updates merge
Increase the audio bitrate in the video generation

Matches the corresponding change in the audio generation.
Merge pull request #377 from kepstin/recording-updates-merge

Increase the audio bitrate in the video generation
Fix the 'timestretch' fixup so that seeking is done after stretching

The previous version may have the beginning of the audio off by a bit,
since it was seeking in the audio file to find the start before the
stretch was applied.
Merge pull request #378 from kepstin/recording-updates-merge

Fix the 'timestretch' fixup so that seeking is done after stretching
Minor tweaks in language strings
 - implement eject user from meeting
Merge branch 'master' into add-auth-token-to-secure-voice-call
 - start implementing token generation