Add CSRF token
Integreated MS simple membership provider
Bootstrapify account views
Added delete view, additional view touchups.
Numerous improvements:

- Implemented helper to generate aesthetic, hyperlinked breadcrumbs based upon controller type (Home/Bootstrap/Other) and action (CRUD)
- Improved Bootstrap view helper API to accept consistent text, icon, and button style arguments.
- Improved FlashMessage to queue multiple messages
- Fixed flash messages to be cleared when they are consumed
- Added IEntityViewModel.OriginalValues to provide access to valid values when the view model may contain invalid edits (e.g., so that breadcrumbs don't have to display an empty name.)
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