* #144: moderator notes WIP, * plugin size: adding an API, * refactoring the code from the task app, to create a new MUC App system.
* new icon for the task app * create task message action
* initializing some code parts * mechanism to add font-awesome icons to the defaults one that ConverseJS uses * new way to override ConverseJS index.js (to add new custom plugins, that are directly build into ConverseJS)