Updated anvilMemo for Bootstrap v3
Added anvilValidationFormControl Abstract Class
Added containerClass Property to anvilContainer
Added isRequired Property to anvilControlGroup

If isRequired is true, an asterisk will be prefixed to the label.
Added HTTP_X_FORWARDED_FOR to anvilSession

Required for a more standard user IP detection for servers behind load
balancers.
Moved Template Token Assignments to the display