Include NameID claim when authenticating user.
Updated to use the GA version of the Microsoft JWT handler
Updated to IdentityModel v3
Made AuthenticationHelper more robust.
Fixed a bug in AuthenticationHandler
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' into customized

Conflicts:
	src/Libraries/Thinktecture.IdentityServer.Core.Repositories/packages.config
	src/Libraries/Thinktecture.IdentityServer.Core/packages.config
	src/Libraries/Thinktecture.IdentityServer.Protocols/packages.config
	src/OnPremise/WebSite/packages.config
	src/Tests/packages.config