Email CCU Addon 1.6.3

This is version 1.6.3 of the HomeMatic/CCU Email Addon. This version incorporates the following changes:

• support for RaspberryMatic (http://homematic-forum.de/forum/viewtopic.php?f=56&t=26917)
• updated msmtp binary version (1.6.1) for RaspberryMatic