Use latest SimpleJson 0.38 in base solution; link it in winstore
Define version manually; link root AssemblyVersionInfo regardless

This is done as otherwise the only way to get the current assembly
version is by using a reflection workaround
Add preprocessor directive in release mode too
Just save on unhandled exception; send when app next started. Post using modern async Windows.Web.Http.HttpClient
Async (tasks) all the way down. Rm old posting code
Specify to not continue on original context with ConfigureAwait