replacing ALT-N logic with ExcutionContext update
Removing red blink when clik and adding clearStandardOutputMethtod
moving ALT-N click event content to _updateEditorWithLastSendAndExecute
removing usless comments
Moving clearStandardOutput to excuteCodeAt method
extract lastSendAttendeeName method
executeCodeAt do not execute if no code to execute
rename refresh as refreshWithSessionID in authorBar
Extracting StandardOutpu Class