Peter M. Groen / hueplusplus

…de new functions abstracting said implementations, rename some old HttpHandler functions to match their task and clean up some stuff

…ssize_t, fix possible problems with those datatypes and small cleanup

An exception was thrown when the returned error message of the  hue bridge was checked for member "lights", because in that case the Json::Value is no object anymore.

…aming of some variables

…mprove overal performance

Split hue classes into different header and source files

Fix instanciation of unique HueLight pointers