Fix menu typo

	* src/persp/dbgperspective/menus/menus.xml: Fix CopyMenutItem ->
	CopyMenuItem typo.
Fix "restart loosing inferior argument" bug

	* src/dbgengine/nmv-gdb-engine.cc (GDBEngine::load_program): Do
	not reset the command queue *after* launching a fresh GDB.  That
	might drop many useful commands sent to the new GDB instance and
	thus make us loose important information such as the arguments to
	the inferior.  Rather, reset the command queue before launching a
	fresh new GDB.