Remove code that moves actionBar when there is incoming call. We now depend on the autolayout to position us correctly.
_addView, _removeView won't request layout for iOS.
LayoutBase: addChild & remvoeChild will request layout.
ContentView: content change will request layout.
recycleNativeView filed now accepts: "always" | "never" | "auto". Always will recycle the nativeView no matter if its nativeView or android proprties are accessed. Never will disable recycling. Auto will recycle it only if nativeView and android properties are not accessed.