Minimal editor for use with streamhub.
The Editor is itself a subclass of View.
The Editor defines a _i18 property for its display strings that can either be overridden or extended.
The Editor has a few abstract methods:
@param {Object} data
#sendPostEvent
What to do with the comment data (dispatch a DOM event, invoke a service, etc.)
@param {Object} data
#_handlePostFailure = util.abstractMethod;
What to do on error.
@param {Object} data
#_handlePostSuccess = util.abstractMethod;
What to do on success.