Refs: #2675
Introduce alembic
eliminate nested sql aggregations
Fix size & type of copied objects (sqlite)
Refs: #2611
Fix size & type of copied files
Progress II: update sqlalchemy pithos backend lib
Do not include children of public objects in listings
Refs: #2394
Progess I
Add umask option.
Overwrite permissions every time.
Fixes #2312
Send sharing notifications.
Fixes #2295
Include instance in queue messages.
Different queue message types use different keys.
Open files in backend as read-only if such is the filesystem.
close sqlalchemy connections literally
Remove lib package.
Merge commit 'v0.9.0' into packaging
Conflicts: pithos/__init__.py pithos/api/management/commands/__init__.py pithos/backends/lib/rabbitmq/__init__.py pithos/backends/lib/rabbitmq/queue.py pithos/lib/user.py pithos/middleware/user.py pithos/settings.py...
Merge branch 'master' into packaging
Conflicts: pithos/settings.py snf-pithos-app/pithos/middleware/log.py snf-pithos-app/pithos/urls.py snf-pithos-backend/pithos/backends/__init__.py snf-pithos-tools/setup.py
Split pithos components in separate packages
- splitted pithos modules in separate reusable components- python packaging for all packages- snf-webproject support (entry_points) for pithos django applications