Skip corrupt/empty audio files when processing recording.

Now when an empty/corrupt audio file is detected, it will be replaced
with silence.
Update ToolController.groovy

bbb-lti: Changed the main tool title shown by the lti cartridge
 - fix problem where java security dialog pops up due to java 7 update 45
  https://code.google.com/p/bigbluebutton/issues/detail?id=1658
Merge branch 'master' of github.com:bigbluebutton/bigbluebutton
 - addd necessary manifest attributes to fix java security dialog popups
Merge pull request #275 from kepstin/corrupt-audio-fix

Skip corrupt/empty audio files when processing recording.
Update index.html

bigbluebutton-config: Fixed typo error on "Google Plus" logo
 - add alert warning when user has old java version when starting desktop sharing.
Revert " - add alert warning when user has old java version when starting desktop sharing."

This reverts commit 570ea3c6f8e8c3953125fd467c5d19a44e764422.
Support processing of images with extension .jpeg
fixed bug 1661, the tool now switches to pan/zoom when a new presentation is loaded
 - add version check on applet. Don't allow sharing of screen when java version
   is lower than 1.7.0_45
Merge branch 'master' of github.com:bigbluebutton/bigbluebutton
 - change applet display version to 0.81
 - center the java version error message dialog
Updating label to RC4
Updating label to RC4
 - change java version dialog title
 - change java version dialog title to explicitly tell the user that it is an error
 - clean up presentation list to remove scrollbar and display 3 presentations properly