Session/Toolbars:
* src/LyXAction.C: LFUN_TOOLBAR_TOGGLE_STATE
* src/session.h/C: add ToolbarSection class
* src/lyxfunc.C: handle LFUN_TOOLBAR_TOGGLE_STATE
* src/frontends/LyXView.h/C: toggleToolbarState(name)
* src/frontends/Toolbars.h/C: initFlags, toogle and save toolbar,
changed update logic
* src/frontends/qt4/QLToolbar.h/C: saveInfo. Surprisingly little is
asked from frontend.
* src/frontends/qt4/GuiView.C: save toolbar when lyx exits
* src/MenuBackend.h/C: add Toolbars submenu
* src/lfuns.h: add LFUN_TOOLBAR_TOGGLE_STATE
* src/ToolbarBackend.h: add AUTO flag
* lib/ui/stdmenus.ui: add view->Toolbar menu
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@15691
a592a061-630c-0410-9148-
cb99ea01b6c8