Fix BS444 connection problem

Change BS444 connection type to public (instead of random)

Catch more errors when sending mail

Not only SMTPException errors but any errors need to be caught and logged to enable debugging connectivity issues

Merge branch 'master' into Plugins

Added updating to Domoticz

Wen configured in ini file program now updates virtual BWR102 scale
sensor to enable graphing. Emailing of weight data is now optional by
config in ini.