Use development version of ScalaFX libraries that include latest main repo changes proposed fix for Issue 16.
Do not relay on implicit `apply` that may be removed from ScalaFX.
Optimize imports.
Use ScalaFX `ScrollBarPolicy` and optimize imports.
Use ScalaFX notation for adding content and optimize imports.
Use official version of ScalaFX (Jan 7, 2013).
Update examples to use new wrappers.
Simplify imports.
ScalaFX Issue 23 "Cannot assign a ScalaFX object to scene.root" was fixed, so remove call to delegates.