Overflow problem with InputSuggestAjax

During working on adding inputSuggestAjax functionality to tobagos in component i found this problem:

1. maybe not realy a bug, but i dont like it: If the suggested item doesn't fit into the popup div the content is wrapped (only if there are spaces).
see attached image suggestAjax-wrap.png.

2. and this is a bug: If the suggested item contains no Spaces and doesn't fit into the popup div the items continue rendering out of the popupDiv.
see attached image suggestAjax-long.png.

problem 1 is easy to fix: just add "whitespace: nowrap;" to the LI style, but this moves problem 1 to problem 2.

I'll try to fix this for tobago and provide a backport patch then.