Updated package references for NLog, Serilog, added nuspec for Serilog

Added ExitCode for unhandled exception so that service restarts

Added service events, adding unit test host, refactored service confi…

…gurators

Added service configuration documentation

Updated NuGet, hope it works

Updated version to 2.3

Can't internalize Spark

Version 2.1

upgrading magnum

Fix in magnum from bug in PollingFileSystemWatcher - Moved events got…

… the path and file name backwards causing all kinds of havoc. 2.0.1.