Implement multitasking warning dialog. Warn user if resolvers not set. svn path=/import/netsurf/; revision=841
Remove obsolete theme files. Hide some unimplemented toolbar icons. F2 moves caret to URL bar and clears it to "www.". Simplify some of the toolbar code. Fix menu-related crash (reported by Jerome Mathevet). svn path=/import/netsurf/; revision=836
Status window now correctly respects the horizontal scroll bar height. svn path=/import/netsurf/; revision=829
Revised GUI. svn path=/import/netsurf/; revision=823