* src/insets/InsetLabel.[cpp,h}:

* src/insets/InsetLabel.[cpp,h}:
* src/insets/InsetCommand{.cpp,h}:
	- rename update to updateCommand

* src/CutAndPaste.cpp:
* src/insets/InsetBibitem{cpp,h}:
	- add duplicate check. There's a remaining glitch: the warning message after setting a bibitem
	  key in the dialog to a duplicate pops up twice.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@23420 a592a061-630c-0410-9148-cb99ea01b6c8