 - Ensure export files are closed before deleting them; when in full-streaming memory mode, this prevents cancelled exports from having their file-writing thread block waiting for more input indefinitely, causing a hang.  This addresses Issue #1066
 - Ensure export files are closed before deleting them; when in full-streaming memory mode, this prevents cancelled exports from having their file-writing thread block waiting for more input indefinitely, causing a hang.  This addresses Issue #1066


CoolSwitcher/sequelpro,CoolSwitcher/sequelpro,Jellyfrog/sequelpro,leichunxin/sequelpro,eric-seekas/sequelpro,treejames/sequelpro,dnl-jst/sequelpro,chenbk85/sequelpro,kaneshin/sequelpro,treejames/sequelpro,dnl-jst/sequelpro,CoolSwitcher/sequelpro,Jellyfrog/sequelpro,chenbk85/sequelpro,abhibeckert/sequelpro,abhibeckert/sequelpro,leichunxin/sequelpro,josegonzalez/sequelpro,leichunxin/sequelpro,kaneshin/sequelpro,kaneshin/sequelpro,josegonzalez/sequelpro,CoolSwitcher/sequelpro,eric-seekas/sequelpro,josegonzalez/sequelpro,eric-seekas/sequelpro,eric-seekas/sequelpro,Jellyfrog/sequelpro,dnl-jst/sequelpro,treejames/sequelpro,abhibeckert/sequelpro,Jellyfrog/sequelpro,dnl-jst/sequelpro,abhibeckert/sequelpro,josegonzalez/sequelpro,treejames/sequelpro,chenbk85/sequelpro,kaneshin/sequelpro,leichunxin/sequelpro,chenbk85/sequelpro