ISSUE-92: P3P and Internet filters

The current proposal is to add the following paragraph to what is 
currently the end of 
the overview: 

The suggested standards in this document are intended to be consisent with 
the
standards and best practices coming out of the work of other efforts, such
as P3P, WAI and other efforts. In those cases were we recommend building
and extending some of this work, as in the case of Safe Web Browsing and
filtering, it is noted in the recommendation.

There seems to be concensus on this one. Tyler, please make the change and 
close the issue.