GUAC-685: Make event target for text input cleanly visible.
GUAC-685: Track text composition. Do not handle input events during composition.
GUAC-685: Display text briefly, as it's typed.
GUAC-685: Ignore keycode 229, sent by some browsers during IME composition (see: http://lists.w3.org/Archives/Public/www-dom/2010JulSep/att-0182/keyCode-spec.html).
GUAC-685: Align typing to the left, just fade out as text is sent.