Some context menu work:

Some context menu work:

* src/BufferView.cpp:
* src/FuncCode.h:
* src/LyXAction.cpp:
	- new LFUN_NEXT_INSET_MODIFY

* src/insets/InsetBox.{cpp, h}:
* src/insets/InsetCommand.{cpp,h}:
* src/insets/InsetNote.{cpp,h}:
* src/insets/InsetSpace.{cpp,h}:
* src/insets/InsetVSpace.{cpp,h}:
	- implement context menu and access to some changes

* lib/ui/stdmenus.ui:
	- new context menus for Box, Space, VSpace, Note.
	- extend the context menu for InsetRef.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@23920 a592a061-630c-0410-9148-cb99ea01b6c8