Fixes unexpected behaviour issue when changing multiple lamps

We were using one state object to change multiple lamps. This turned out to give unexpected behaviour. When for example doing something like './hue all --rgba=255,0.0' one lamp would turn red and the other one would turn blue. They did however get the same state object with the same color x,y values.

This version creates a new state object for each lamp which seems to work as you'd expect.
Merge branch 'master' of https://github.com/kvendrik/philips-hue-cli