by Dan Walsh (2017-09-21):
- Add support for multiple configuration files.
oci-umount will still read config file /etc/oci-umount.conf if it
exists, but will also read config files in /usr/share/oci-umount/oci-umount.d
and config files in /etc/oci-umount/oci-umount.d. If the same file name exists
in both directories, then oci-umount will only use the content in /ect/oci-umount/oci-umount.d.
- Make Logs less noisy
- Improve logs output, adding containier id, and needed file information
- Add support for specifying submounts PATH/* will unmount all mountpoints
under PATH in a container
- Support for oci configuration files to specify when to run the plugin