v1.2.1

• Add accessory id to config struct
• Change value type of ids from int64 to uint64
• Change Lightbulb service to only include On characteristic. Use ColoredLightbulb instead.
• Create new colored lightbulb accessory.
• Generate X-HM URI which are accessible via the ip transport hc.Transport.XHMURI().
• Removes accents from published dns-sd service name
• Add separate header and cooler services
• Use github.com/xiam/to instead of github.com/gosexy/to
• Removes vendor directory