New project Serilog.Extras.MSOwin. MS.Owin.Logging ILogFactory implementation that creates a Serilog ILogger + tests
Serilog.Extras.MSOwin: Add a middleware that opens a nested context property to allow correlation of log messages from an owin pipeline.
Serilog.Extras.MSOwin: Allow specifying of the context property name.
Some xml comments
Serilog.Extras.MSOwin: compile fix (field name)
Serilog.Extras.MSOwin: sign the assembly
Serilog.Extras.MSOwin: add nuspec
Merge branch 'msowin' of https://github.com/damianh/serilog into damianh-msowin

Conflicts:
	Serilog.sln