If a SELECT fails, set imap_store->current_folder to NULL so a SELECT is

If a SELECT fails, set imap_store->current_folder to NULL so a SELECT is

2000-07-13  Jeffrey Stedfast  <fejj@helixcode.com>

	* providers/imap/camel-imap-folder.c:
	* providers/imap/camel-imap-store.c: If a SELECT fails, set
	imap_store->current_folder to NULL so a SELECT is forced before
	any message/folder operations are requested. Also, because some
	users don't use a namespace, make sure that if the url->path is
	"/" we don't use it when creating the folder_path.
	(camel_imap_command[_extended]): Since we allow the passing of
	a NULL folder which we can use to bypass a forced SELECT, no need
	to check for the individual commands that don't require a folder
	to be selected.