Reach

1) Implement ComputationResult response with the node data which was changed after execution of RunCancelCommand (values, geometry)
2) Add REST service to retrieve static data (for now it is the list of Node Models)
3) Update models drawing logic to avoid Dynamo crash on subsequent client updates
Well there isn't any issue with ```static``` as such, I'd just like to avoid having singletons around too much, if there's a genuine need for it then it is okay for me. I see ```WebServer``` is a data member of ```dynSettings``` class, so it will only be constructed once, which makes me believe that ```JsonSettings``` can be a data member?