release rx 1.1.0

Features

• rx: add creation functions for intersection-, resize-, and mutation observer (a71a0ff)
• rx: add directive which uses intersection-observer (49647c6)
• rx: add directive which uses resize-observer (4fee038)
• rx: add flattening operators with default error handling strategies (63b9328)
• rx: add flattening operators with default error handling strategies (af3af82)
• rx: add rx-observe-intersection directive (b767c4e)
• rx: add rx-observe-visibility directive (a832922)
• rx: add rxPluck operator (9a7213a)
• rx: add rxWrap operator (019debb)
• rx: allow passing ElementRef of Element to create-intersection-observer (df78519)
• rx: allow passing ElementRef of Element to create-mutation-observer (903807a)
• rx: allow passing ElementRef of Element to create-resize-observer (c3ea8e4)
• rx: create rxRenderInViewPort directive (86fcf51)
• rx: createSignal accepts now a startvalue (6142513)
• rx: enhance flattening operator with error handling strategies (224a594)
• rx: increase test coverage (75abc51)