sure blocks track width overflow as well as height
	overflow and ensure that a layer's dimensions expand
	to encompass both width and height overflow.

	Also fixes a bug with line breaking that allowed unbreakable
	words to actually be broken up when they were the only word
	on a line.  This is wrong and differs from all other
	browsers, so the patch in bidi.cpp fixes us to match
	other browsers.  (This was required to fix the above bug.)

        Reviewed by mjs.

        * khtml/rendering/bidi.cpp:
        (RenderFlow::findNextLineBreak):
        * khtml/rendering/render_flow.cpp:
        (RenderFlow::RenderFlow):
        (RenderFlow::layout):
        (RenderFlow::layoutBlockChildren):
        * khtml/rendering/render_flow.h:
        * khtml/rendering/render_layer.cpp:
        (RenderLayer::updateLayerPosition):
        * khtml/rendering/render_object.cpp:
        (RenderObject::nodeAtPoint):
        * khtml/rendering/render_object.h:
        * khtml/rendering/render_table.h:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@3032 268f45cc-cd09-0410-ab3c-d52691b4dbfc