gets rid of the old broken way KHTML used to handle this
	and implements a brand new mechanism.

	With this change, I have decreased the tag priority of <font>
	and <a> to match other inlines (<i>, <span>, etc.), and I
	now allow all the inlines to contain blocks for relaxed parsing.

	Now if you open an <i> or a <b> and just leave it open across
	blocks, this will work.

	I also fixed a bad DHTML bug caused by the WebCoreBridge
	forceLayout method.  The basic pattern is that someone does
	a tiny repaint of just a sliver of the window, then someone
	schedules a layout (which means they want a full repaint), but
	then drawRect comes along and calls forceLayout which unschedules
	the layout, thus preventing the full repaint from occurring.

	Any basic DHTML that used append/remove child was broken because
	of this pattern.  For now I have just removed the unscheduleLayout
	call at the end of forceLayout.

        * khtml/html/dtd.cpp:
        (DOM::checkChild):
        * khtml/html/htmlparser.cpp:
        (KHTMLParser::popInlineBlocks):
        * khtml/rendering/render_container.cpp:
        (RenderContainer::removeChild):
        (RenderContainer::removeLeftoverAnonymousBoxes):
        * khtml/rendering/render_flow.cpp:
        (RenderFlow::setStyle):
        (RenderFlow::layoutBlockChildren):
        (RenderFlow::continuationBefore):
        (cloneInline):
        (RenderFlow::splitInlines):
        (RenderFlow::splitFlow):
        (RenderFlow::addChildWithContinuation):
        (RenderFlow::addChild):
        (RenderFlow::addChildToFlow):
        * khtml/rendering/render_flow.h:
        * khtml/rendering/render_object.cpp:
        (RenderObject::mouseInside):
        * khtml/rendering/render_object.h:
        * kwq/KWQKHTMLPart.mm:
        (KWQKHTMLPart::forceLayout):
        * kwq/WebCoreBridge.mm:
        (-[WebCoreBridge copyRenderNode:copier:]):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@2854 268f45cc-cd09-0410-ab3c-d52691b4dbfc