0.34.0

Added

• contacts add and contacts rename save a person in your WhatsApp contacts. add uses the name WhatsApp
  shows for them, rename the name you give. It is a WhatsApp contact name: it shows on every device of the account,
  and nothing is sent to the person. For someone saved in the phone's Contacts app, the phone keeps showing that
  app's name. wa refuses the account's own number. contacts remove and import stay refused.