Change temperature from int to float64.
Change temperature from int to float64.

Also changed driver-go-lifx. driver-go-hue already cast the value to uint16. fakedriver compiled.

Signed-off-by: Jon Seymour <13015cd9b4bd75fb137ba1a80810e07fcd27c10e@gmail.com>

ninjasphere/go-ninja,ninjasphere/go-ninja