In our testing we identified and fixed a number of issues as outlined below

the patch file was against the current Head version.

Removing the 'all participants' links from the groups link makes sense to us. But not sure whether everyone else would want this.

Fixes:

preload.php:
changed " to ' to fix syntax error and cleanness.
changed groups drop down to remove 'all participants'.
changed upload message to suggest wbd file.

attendance.php
changed groups drop down to remove 'all participants'.
change $userid sql to return only distinct userid and remove array_keys warning.

lib.php
added addslashes_object calls to event functions.
fixed addslashes_object calls so that object is updated.

moderators.php
changed groups drop down to remove 'all participants'.
changed groups drop down to redirect to moderators rather than participants screen.

styles.php
make 'Verify Setup' link not as prominent as 'Join Meeting' link.

view.php
changed groups drop down to remove 'all participants'.
fixed addslashes_object calls so that object is updated.
changed $candeleteownrecordings to $candeleterecordings.

participants.php
changed groups drop down to remove 'all participants'.

db/upgrade.php
added addslashes_object call to meeting creation for sessionname.

db/install.xml
corrected previous attribute of created field of elluminatelive_recordings.

lang/en_utf8/elluminatelive.php
added preloadchoosewhiteboardfile string.