- Remove full details from ItemStarted (unnecessary, incorrect CamelCase)
- Add "type" ("file" or "dir") to both events
- Add "action" (what we tried to do - "delete" or "update") to both
events.
The "Invalid" config attribute is retained for errors discovered during
config loading (empty path, duplicate ID). This can only be set or
cleared at config loading time.
Errors discovered during runtime (I/O problems, etc) are now in the
folder state instead. Changes to these are sent as any other folder
state change.
We need an explicit chmod() when creating a new directory.
Otherwise a new directory may be created with a different permission
from the one received from an originating device, because the umask
is applied to the mode given to mkdir().
The incorrect permission is later sent back to the originating device
and the original permission will be lost.
