web.config cleanup
Fixed reference to Microsoft.Owin.Host.SystemWeb.
Merge pull request #102 from larsw/rp-nancy-owin-ref-fix

Fixed reference to Microsoft.Owin.Host.SystemWeb.
Harcoded MSA assertion works
Prototyped extensibility point for assertion grant handling
Cleanup
Validation code cleanup
Updated default assertion validator wire-up
Added assertion flow to admin UI + client validation
Merge branch 'AssertionFlowPoc'
Updated test data
Fixed bug in test data
Cleanup assertion grant interface
Merge branch 'master' of https://github.com/thinktecture/Thinktecture.AuthorizationServer

Conflicts:
	source/WebHost/Web.config
Removed custom Msa identifier
RasU
RasU
Cleanup token controller
Added tests for assertion flow
formatting