Log Message:
khard: update to 0.13.0.

v0.13.0: 2018-12-25
- New action postaddress: lists all postal (addresses analog to email and phone \ 
actions, #196)
- New zsh completion function for email addresses
- New config variables for the contact table section in khard.conf: \ 
preferred_email_address_type and preferred_phone_number_type
- Slight speed improvements
- Test suite created
- Several bug fixes