* add missing ref for build in VSO hosted VS 2017 build
* project to just build Dlls
* target multiple frameworks
* switch to net46/netstandard1.3
* fix projects to allow for netcoreapp 2.0 build
* fix networking for .Net Core 2.0:
SendAsync and ReceiveAsync now frequently return synchronously even if successful. These cases had not been properly handled yet, previous versions never hit these codepaths.
* fix travis build / nugets
* change travis build target
* fix Kestrel https option for netstandard 2.0
tested with Ua Expert against standard and ref server
* Handle special case correctly, when zero bytes are received its ok, or BadTimeout will occur
* simplify connect, reduce DiscoverEndpoint calls
* Add visual studio 2017 solution file to allow building .net Standard stack and console samples
* Enable VS 2015 when VS 2017 is installed
* Update readme
- implement more test functions
- implement MultiStateValueDiscreteItem ValueAsText Property
- add Nodes for AccessLevel_xxx_NotUser tests
- keep only one copy of ref server sources
-delete the obsolete uanodes/txt files in project folders
note: clean build required, make sure all dll are updated in bin folders or resources in dll may not be found
- create self signed cert on first start (kudos to bouncy castle)
- fix path handling in many areas,
- ./ or ../ is treated as rooted dir
- special %LocalFolder% for UWP apps to allow to write certs in app temp storage
- all batch helpers to create certs removed