2002-03-06  Havoc Pennington  <hp@redhat.com>

	* src/frames.c (meta_frames_manage_window): use hash_table_replace
	instead of g_hash_table_insert

	* src/main.c (main): only enable verbose/debug if you set
	METACITY_VERBOSE/METACITY_DEBUG

	* src/util.c (ensure_logfile): only use a log file if
	METACITY_USE_LOGFILE is set

	* src/display.c (meta_display_for_x_display): add warning if
	MetaDisplay isn't found

	* src/window.c (meta_window_free): add an assertion that we
	successfully cleared the grab window