Improving performances by removing Spacer component when possible, replacing them by style values and replacing boxes containers by canvases.
User settings menu placed at the same vertical level settingsBtn and horizontally at it right.
set video quality
don't  pass the file extension
set sample rate
separate scaling and padding commands for deskshare
Merge pull request #266 from gugat/matterhorn_081

matterhorn scripts work with new version of ffmpeg
update locales
Merge pull request #267 from gugat/locales

update locales
remove audio extension in webcam processing for matterhorn
Merge pull request #268 from gugat/matterhorn_081

fixes audio  extension problem in matterhorn
Make generation of png images for pdf pages more resiliant.

We now use ghostscript to output pngs directly from the original pdf,
rather than using convert on the split pages. This should make corrupt
or strange pdfs less likely to cause issues.

As well, if a pdf page conversion fails (for any reason, including that
the original pdf is missing...) it will be logged, and a blank page
generated, and processing will continue.
Merge pull request #270 from kepstin/presentation-resiliance

Make generation of png images for pdf pages more resiliant.
Fixed broadcast module not showing for clients, multiple windows opening for presenter and stream not playing if joining once the stream was started
 - fix issue where viewer stop sharing webcam when switching presenter
   https://code.google.com/p/bigbluebutton/issues/detail?id=1641
 - remove tracking of how many unread private tabs a user has as we don't really need that level of detail
   - fix: https://code.google.com/p/bigbluebutton/issues/detail?id=1640
 - stop propagation of click event to prevent webcam window from resizing.
   fix: https://code.google.com/p/bigbluebutton/issues/detail?id=1642
update italian translation strings

0.8 is the default version set for all the "locales", with the value 0.81 it fails while loading the client in the browser. I also changed it in Transifex.
Updated labels for 0.81-RC3
update locales and add welsh