Makefile.in: Added prof_get.c to the list of files to be compiled

Makefile.in: Added prof_get.c to the list of files to be compiled

profile.hin: Added declarations for profile_free_list(),
	profile_get_relation_names(), and profile_get_subsection_names().
	(These are new public interfaces to the profile library.)

prof_int.h: Removed the profile_section_t structure, which was used
	only by the now-defunct prof_section.c file.  Added the internal
	interfaces for the new public interfaces.  Removed unused declarations
	which were never implemented(profile_get, profile_update).

prof_init.c: Moved all of the profile querying functions
	(profile_get_values(), profile_get_value(), etc.) to prof_get.c.  In
	the process, removed the really bletcherous (and badly implemented)
	profile_get_first_values(), which did nothing like what the named
	implied.  Also added to prof_get.c new functions
	profile_get_subsection_names() and profile_get_relation_names().

	(profile_ser_internalize): Rewrote error handling to be clearer, and
	removed a bug where memory was not freed correctly in an error case.

	(profile_init): If a list of pathnames is passed in, profile_init will
	now try to open all of them, now that we've defined query fallback
	semantics in prof_get.c

prof_parse.c: Fix lint warning.

prof_tree.c (profile_find_node_relation,
	profile_find_node_subsection): Allow the returned value or subsection
	field to be NULL (in case the caller isn't interested in getting the
	returned value or subsection, and only cares about getting the name).

	(profile_delete_node_relation, profile_delete_interior_node_relation):
	Removed these functions and replaced it with profile_remove_node(),
	which takes a boolean argument section_flag.

	(profile_find_node_name): Removed this function.  (This was a
	Cygnus/Fusion special used by the now removed
	profile_find_first_values() function.)

test_profile.c: Added commands to test the new
	profile_get_subsection_names() and profile_get_relation_names()
	interfaces.

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@11011 dc483132-0cff-0310-8789-dd5450dbe970