Refine commit c9fcc8cd510abc0cbebb872dc3e457327655e778 (NEWT X11Window.c comments)
Bug 924: Make ALWAYS_ON_TOP Persistent when Reparenting (child -> top) (2nd attempt)

Commit c8726ef04b94ad8e66e1191a06ff793b908d130c reinforced ALWAYS_ON_TOP in native reconfig code
issued at reparenting call, which might be too early for the WM.

Perform ALWAYS_ON_TOP reinforcement from java side when reparenting CHILD -> TOP was successful
and visibility is reached. X11 only!

NewtAWTReparentingKeyAdapter: Add 'a' alwaysOnTop toggle to test w/o applet code.