mapistore/python: Add new line to an error message
HACK: Makefile: don't install python backends - i'm using symbolic link
WIP: mapipstore_backend: Gather as much context as we can - don't fail if backend fail

oxio for instance doesn't support this call yet
mapistore/sample.py: Fix indentation in Folder.delete()
mapistore/oxio.py: polish log messages and remove obsolete comments
mapistore/oxio.py: Implement get properties for Folder
mapistore/oxio.py: Make more sane properties for subfolders while listing in Hierarchy table