add comments
comments correction
Merge remote-tracking branch 'upstream/master'
compleate comments
some comments added
comments compleated
add depricated tag
add depricated tag
compleate comments
compleate comments
compleate comments
add comments
Merge remote-tracking branch 'upstream/master'

Conflicts:
	src/mibew/libs/chat.php
remove depricated tag
remove depricated tag
Provide js callbacks for invitation events
Fix bug with sound when "mibew root" is empty
Update Handlebars.php
Fix problem with not serial keys and JSON response
Fix bug with takeover feature