Release 1.8

Summary of on-device changes: OS based on Linux 4.0 and Debian Stable (Jessie)

Improved device support: Corrigo Ventilation support Further mbus meter support Support for Calio pumps Support for Grundfos Magna 3 / CIM 200 pumps Support for Thermia XL pumps Now using VPN connections on port 443 to avoid abusive networks Support for undocumented NIBE registers Migrated Zabbix datatype to Trapper * Finalised Zigbee support