Properly re-query secrets from the settings daemon when stuff fails.

	* src/nm-device-802-11-wireless.c
		- (ap_auth_enforced): handle static WEP correctly here by differentiating
			between Shared Key and Open System auth modes
		- (link_timeout_cb, supplicant_connection_timeout_cb,
		   real_act_stage4_ip_config_timeout): clear existing secrets and
			request new ones when something fails due to a suspected wrong key
		- (real_act_stage2_config): fix for new request_new argument to
			nm_manager_get_connection_secrets()

	* src/nm-manager.c
	  src/nm-manager.h
		- (nm_manager_get_connection_secrets): return error status; pass
			new request_new argument on to the settings daemon

	* introspection/nm-settings-connection.xml
		- New 'request_new' argument to the GetSecrets call that hints to the
			settings daemon to ask the user for completely new secrets

	* libnm-glib/nm-settings.c
	  libnm-glib/nm-settings.h
		- (impl_connection_settings_get_secrets): handle new 'request_new'
			argument



git-svn-id: http://svn-archive.gnome.org/svn/NetworkManager/trunk@2872 4912f4e0-d625-0410-9fb7-b9a5a253dbdc