Now Widgets can control between children interation or receive focus
itself. And focus_cycle has now one default code.
And don't pass focus to disabled widgets
SVN revision: 52959
The old theme start show animation on obj show, if you want
disabled by default it doesn't work well. I changed the theme
default to be visible, don't need animation on "show".
And hidden_set was with inverted logic.
The focus highlight is in theme. And the widget react to
Return/Space.
SVN revision: 52814
Tiago Rezende Campos Falcao