added missing german locale strings

Fix Latvian language file

Assigned a default blank password for mobile connection, as suggested by Felipe in http://code.google.com/p/bigbluebutton/issues/detail?id=1183

fix http://code.google.com/p/bigbluebutton/issues/detail?id=1229

fixing the issue related to the duplicate of the webcam publishing window (http://code.google.com/p/bigbluebutton/issues/detail?id=1229)

fix for issue 1221. However, need to double check which it's the best way to handle special characters

  time to process

  1. Convert the initial image that is sent to the server as grayscale
  2. Add some debug logs on the applet to determine which step is taking
     a long time. As suspected, it is on the network, esp. using http.
  3. Fix a bug in the server side. Turns out we are not incrementing the
     timestamps in constant interval like we do with the voice. Not doing so,
     doesn't allow the Flash Player to drop frames when packets arrive late.

  send the blocks to the server, and how long it takes for the server to receive all the blocks.

   disconnecting when the connection hiccups

   the screen caltured to other users

Do not process for Matterhorn  if webcam, audio, or desktop are not avai...