added philips_hue node
Added check for no Philip Hue bridge located
Removed single Philips Hue node
Merge https://github.com/node-red/node-red-nodes
Added 2 Philips Hue nodes, hue_discover and hue_manage
added a no bridge check
addedd nodes under common directory
Merge pull request #7 from hdoukas/master

Add philips_hue node