Minor updates to windows, yahoo modules

 * Windows scope *wl.contacts_emails* added to be able to correctly retrieve emails instead of email hashes. No official documentation seems to be available from Microsoft. Windows me/friends defines friends as contacts only whom you have invited. This is different from me/contacts which essentially is a list of friends one would expect. *me/following* verb has been updated to return me/contacts.
 * YQL supports *https*, hence using that.