Feature: Delete SMS/Voicemail/Calls Permanantly

[GoogleCodeExporter]

Currently calling the deleteMessage() method in the Voice class deletes the 
message from the google voice inbox.  It does not entirely remove it from the 
server.  These messages can still be accesses in the trash folder.

If we want to delete a message from google voice entirely, we need another way 
to do that.

This could be a security issue, as a complete record of all communications are 
stored by google, and must be manually deleted through the browser interface.  
If someone is negligent and their account is compromised, that could be a trove 
of contact information in the wrong hands.  If we can automate complete 
deletion, this risk will be reduced.

Original issue reported on code.google.com by walt.jav...@gmail.com on 4 Mar 2011 at 11:29