Merge pull request #62 from dnobel/minor-api-improvements

Minor api improvements
Added config option for KeepAlive

Signed-off-by: Davy Vanherbergen <davy.vanherbergen@gmail.com>
Merge pull request #63 from dvanherbergen/master

Merged fix for openHAB issue #980 : MQTT connection gets stale / does not refresh
Merge remote-tracking branch 'esh/master' into lifx