- start implementing standalone pre-flight check page
 - start adding checks
 - add some checks for java
 - make polling module run with latest master
 - check for microphone
Merge branch 'make-polling-start-up'
Merge branch 'implement-pre-flight'

Conflicts:
	bigbluebutton-client/build.xml
 - don't show switch presenter button if you are already presenter
 - don't make upload button fix sized to allow changing icon through CSS
UI modifications when user is talking
Merge branch 'master' of https://github.com/bigbluebutton/bigbluebutton
 - start add cam check
improve form in demo12
added UI changes to layout menu and network monitor
Merge branch 'master' of https://github.com/bigbluebutton/bigbluebutton
UI changes to muteme button
Hide the network monitor and editing buttons for layouts module by defult
Simplified the choices in layout.xml
Remove red from cancel button in presentation upload dialog
fix values for layouts in demo12