conversion, helpers, web interface, improvements templates and compatibility

- ADD: ChangeType() method for IConverter without generic argument
- ADD: SuperAdmin  template for web interface by Paweł Balicki
- ADD: Func<TResult> for older frameworks
- CHG: code improvements
- ADD: IHttpResponse can Prefix() and Append() data now
- ADD: IOHelper class
- ADD: template framework
comfig framework

- ADD: handling INI files by config framework
- FIX: StackOverflowException() by calling
ConfigRepositoryBase.SetValue()
- ADD: OnUpdated() event method for KeyValuePairConfigRepository