Patch from Tambet Ingo <tambet@gmail.com>

	Fix mishandling of netlink error floods (rh #459205, novell #443429, lp #284507)

	* src/nm-netlink-monitor.c
		- Remove bits for using a non-default GMainContext, which weren't used
		- (nm_netlink_monitor_error_handler): don't leak the GError, and report
			the actual error code

	* src/NetworkManager.c
		- (nm_error_monitoring_device_link_state): disconnect error handler when
			an error flood occurs to avoid pegging the CPU



git-svn-id: http://svn-archive.gnome.org/svn/NetworkManager/trunk@4334 4912f4e0-d625-0410-9fb7-b9a5a253dbdc