General cleanup (camel_mbox_summary_sync): Fixed a memory leak and added

General cleanup (camel_mbox_summary_sync): Fixed a memory leak and added

2000-06-28  Jeffrey Stedfast  <fejj@helixcode.com>

	* providers/mbox/camel-mbox-summary.c: General cleanup
	(camel_mbox_summary_sync): Fixed a memory leak and added
	CamelException handling.

	* providers/mbox/camel-mbox-store.c (delete_folder): Fixed a
	memory leak

	* providers/mbox/camel-mbox-folder.c (mbox_append_message):
	Default 'off_t seek' to -1 so as to make sure it's initialized
	before it's used in the case of a bad stat() call.
	(mbox_sync): Updated
	(mbox_expunge): Updated