e - fm - flush all evas caches to get rid of open file handles b4 umount
e - fm - flush all evas caches to get rid of open file handles b4 umount

this should fix open file handles on unmount by flushing caches first.
not great, but works. long-term have evas not keep file handles open
for 0 refcount cached items.

rvandegrift/e,rvandegrift/e,rvandegrift/e