This class represents a page designer managed component as part of a
page. A component comprises of multiple regions that again hold components,
thus spanning a hierarchical tree of components. Using the PageMgr.renderRegion(Region)
a region can be rendered which
implicitly includes rendering of all contained visible components. All
content attributes (defined by the corresponding component type) can be
accessed, reading the accordant values as provided by the content editor
that created this component.