Implemented the most widely used features and QML wrappers for them.

Change-Id: I0ac1b174b7f4eb355d097e71255e8d123141b369
Reviewed-by: Ivan Vizir <define-true-false@yandex.com>
Reviewed-by: Jake Petroules <jake.petroules@petroules.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>