CfC: Unclear descriptions of the to, bto, cc and bcc properties

Issue #482 describes problems with the main addressing properties in 
Activity Streams 2.0. The descriptions of to, bto, and bcc don't 
properly describe the functionality of the properties, and the 
description of bcc does not identify properly the range of the property.

The followed text is a proposed erratum for AS2 Vocabulary:

/  - The Notes for the `to` property do not correctly identify the 
functionality (one or more) of the values of the property. The notes 
should read: "Identifies one or more entities that are part of the 
public primary audience of this Object."

   - The Notes for the `bto` property do not correctly identify the 
functionality (one or more) of the values of the property. The notes 
should read: "Identifies one or more entities that are part of the 
private primary audience of this Object."

   - The Notes for the `cc` property do not correctly identify the 
functionality (one or more) of the values of the property. The notes 
should read: "Identifies one or more entities that are part of the 
public secondary audience of this Object."

   - The Notes for the `bcc` property do not correctly define the range 
of the property, limiting it to only the `Object` type. The notes should 
read: "Identifies one or more entities that are part of the private 
secondary audience of this Object."/

This is a call for consensus on adding this text to the errata for 
Activity Streams 2.0. If there are no objections within 14 days of this 
email, I will apply this change to the AS2 errata document and apply 
these changes to the editor's draft.

Evan