* Core::cachedRead is introduced.
 * added development flag for applications.
 * added Html::script, Html::scriptInline, Html::link and Html::linkStyleSheet.
 * improved Io::read and Io::write with Io flags.
 * Scabbia\Crypt renamed to Scabbia\Security.
 * fixed some PSR-2 warnings.
* added Scabbia\Objects\BufferedUpdateCollection, Scabbia\Objects\Collection and Scabbia\Objects\FormHandler objects.
* Collections refactored.
* Controllers now derives from Containers.