5.1.0 - Repeat after me: setter injection is bad

BC breaks

• Setter injection is now discouraged and disabled by default, and will be removed with 6.0.0.
  • Reenable the old behaviour with stubbles\ioc\Binder::enableSetterInjection()

Other changes

• IoC now supports default param values for non-optional injections:
  If no binding present for a param but the param has a default value the
  default value will be used for injection.
• implemented #117: injection stack on binding exceptions
• improved performance of annotation parsing
• improved annotation cache storage functions api
• properties from config.ini are also now available as instance of stubbles\lang\Properties, named config.ini