add new solution for SignalR
add implementation for SignalR (copycat from RavenDb :))
add demo in WebHarness-project
add nuget spec file
move Sink.SignalR to src-folder
A simple ambient context stack, for the full .NET 4.5 framework.
Merge branch 'sink/SignalR' of https://github.com/srasch/serilog into srasch-sink/SignalR
Include NuGet package dependencies; minor formatting, project configuration and documentation updates.
Deal with some apparent lline ending issues in the jQuery nuspec.
Merge branch 'srasch-sink/SignalR'

Conflicts:
	packages/jQuery.2.0.3/jQuery.2.0.3.nuspec
Fixes issue #52 - unable to create a nonexistent directory for rolling files; issue also impacted directory creation for regular file sink, also fixed.
Fixes issue #53, unable to output events with properties named the same as built-in format properties.