Merge pull request #1 from tvdzwan/master

sync to tvdzwan:master
Improved philip hue device:
add lamp types autodetection
add full xy-Colorspace implementations
reduce http requests to the hue bridge. This prevents DDOS -> 503
add color black -> lamps off
save state is temporary disabled
Merge pull request #124 from bimsarck/master

improved philips hue device