Changes

* When printing** Clone , clone the document and create a new presentation for that, instead of trying to create a new presenation (allows print preview/printing in a new window, letting the user continue to interact with the old document) (Eli?)* layout** Implement CSS3 page-break and column-break properties** Implement CSS3 borders and backgrounds module*Implement Web Forms 2* Implement Web Apps 1.0: drag-and-drop* Rework [[CSSFrameConstructor|frame construction]] to be simpler, faster and less fragile** XBL2 implementation** Rework XUL layout to operate more like normal reflow (compute all widths first, then all heights)*Then merge nsHTMLScrollFrame/nsXULScrollFrame* PresShell / PresContext unification* gfx** Work on cairo OpenGL backend (glitz?)* SVG SMIL support* Features comparable to The Venice Project's XUL compositor: caching contentsubtree rendering in graphics memory*Features comparable to The Venice Project's XUL compositor: DOM feature to visually clone another element in the document * Rework image drawing to decompress-on-draw and make the principal interface be "draw yourself to this Thebes context"* Unify widget events and DOM events* editor** Implement contentEditable

* Offline application support** Fix online/offline events** <link rel="offline"> implementation