v1.0.4

• add tls support
• qname filtering feature
• filtering feature by dnstap identity
• support external config file
• support incoming dnstap from tcp sender
• identity added in message
• dnstap identity and version added in debug log
• tested with bind, nsd, pdns-recursor
• README updated
• support text and yaml output formats
• verbose mode added
• protobuf3 library replaced by the official one from google
• support all dnstap type messages
• support empty dns response
• ipv6 support on address
• timestamp shall be represented as ISO
• fix issue #1