(L2g_block_info): Likewise.
(Local_to_global): Likewise.
(l2g_copy): Switched placement of src and dest to match other copy
	functions in the lyskomd code.  Added const qualifier.
(l2g_lookup): Added const qualifier to the l2g argument.
(l2g_next_key): Likewise.
(l2g_compact): Removed.
(l2g_first_appendable_key): New function.
(l2g_delete_global_in_sorted): New function.
(l2g_dump): Switch placement of l2g and file arguments to match
	other similar functions in the lyskomd code.  Added const
	qualifier.
(l2g_write): Likewise.
(l2g_read): Likewise.
(l2g_searchall): Added const qualifier.
(L2g_iterator): Moved to kom-types.h.
(l2gi_searchsome): Added const qualifier.
(l2gi_begin): New function.
(l2gi_end): New function.