Added support for client system check in bbb-conf

bbb-conf now
  - prints out the host in /var/www/bigbluebutton/check/config.xml
  - updates above config.xml with sudo bbb-conf --setip

Fixed typo in check.nginx

Load bigbluebutton.yml from current path

Updated ActionScript files with LGPL License

Version the playback files for the presentation recording format

This adds the version number to the playback links so that
recordings select the correct version-specific playback support
files.

This script may be run automatically during upgrade; in that
case it should be run like

.../bbb-0.9-beta-recording-update --quiet

After copying recordings from an old BigBlueButton server, you
may want to manually re-run the script, and it takes the option
--force to recheck all recordings even if it has previously been
run.

Moved from labs subdirectory to main level of BigBlueButton repository; reformatted check.nginx

Add delay before recording archiving to workaround Red5 race

Right now there is a possibility that the rap-worker process might
see the recording.done file (written by bbb-web) prior to Red5 having
completed writing the video files to disk.

This happens most often when a meeting end api request is sent while a
webcam is visible.

Add a delay (currently 2 minutes) before the archive scripts are run
to work around the issue. Real fix is far more complicated...

Improved client checks -- looks good Felipe.

renamed BBBClientCheck.html to index.html; moved the locale to outside the src directory (mxml warning)

Merge branch 'master' of https://github.com/bigbluebutton/bigbluebutton into improving-client-checks

Updated the mobile demo to work with the upcoming BBB AIR Mobile app

Merge branch 'improving-client-checks' of https://github.com/mconf/bigbluebutton into improving-client-checks

cleanup; using a config.xml template, and added some logic in the build.xml to set config.xml with the proper host IP

implemented the policy request on deskshare service, to support check on port 9123 by the client checker

Added a SDP hack for Firefox to replace the 0.0.0.0 in the c line

a few tweaks on the client check page: build.xml downloads the image for the download speed test, config doesn't have someone's IP address (just like a config.xml.template), securityError on port check doesn't throw an exception anymore

Changed the wording of the webrtc messages to make them easier to understand

Update to ICE handling

added a check to make sure that ICE negotiation has finished before showing that the call has been accepted in the UI

Stop the webrtc timeout timer when 'connecting' is received