Added ability to look in AppSettings for n2.logout.url and process this during the logout from the management interface.
Fixes n2cms/n2cms#117 - Image gallery supports sites in virtual directories
Resolves https://github.com/n2cms/n2cms/pull/87

Merge commit 'aa41fa6c3b002130bb58256ddcb9f3e3bb698976' into n2cms-2.5

Conflicts:
	src/Mvc/MvcTemplates/N2/Login.aspx.cs
Resolves bherila/n2cms#5 - add icon to redirect page
Resolves n2cms/n2cms#141 with a comment about User.IsAuthorized
Fix a bunch of FxCop issues.
Resolves n2cms/n2cms#133 MVC Posted Form Data is null
Resolves n2cms#123, now displays 404 or install wizard upon broken app_host.config (rather than cast exception)
Resolves bherila/n2cms#4
Fixes n2cms/n2cms#129 N2.Web.Link.To should htmlencode ampersands
Increment assembly version
Resolve bherila/n2cms#8 by wrapping bootstrap grid in appropriate CSS
Resolves bherila/n2cms#3 by handling exception cases gracefully
Resolves n2cms/n2cms#153
Resolves n2cms/n2cms#154
Merge pull request #146 from bherila/n2cms-2.5

Fixes n2cms/n2cms#117 - Image gallery supports sites in virtual directories