Revert "Modifications for Windows authentication and IIS"

This reverts commit bd3ab9795074da936b2cb94351866e1fb9879039.

Conflicts:
	FootlooseFS.Web.AdminUI/Controllers/AccountController.cs
	FootlooseFS.Web.AdminUI/FootlooseFS.Web.AdminUI.csproj
	FootlooseFS.Web.AdminUI/Startup.cs
	FootlooseFS.Web.AdminUI/Views/Shared/_Layout.cshtml
	FootlooseFS.v12.suo
	packages/repositories.config

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Added DeleteAll functionality to IRepository; Update ETL to remove all records in Document DB before processing