phonebook-tools:
 * refactor the code a bit (eliminate code-clones)


git-svn-id: file:///var/svn/freetz/trunk@12125 149334a1-2f27-0410-a3b9-fc62619ac1e6
phonebook-tools:
 * make internal contacts filtering optional


git-svn-id: file:///var/svn/freetz/trunk@12126 149334a1-2f27-0410-a3b9-fc62619ac1e6