Fixed PropertyBag:copy() to correctly copy foreign properties
- Removed unnecessary method
changed Possession interface
initial version of property bag collections
rename, simplify, fix all tests
rename and optimisation
changed names interface, removed fancy way to find rigth properties column name
mass rename
more rename (PropertyBag)
some clean up
typos
collection owner interface tune up
more rename
typos
more consistent ContainerInterface::deleteProperties()
Merge branch 'lists'

Conflicts:
	lib/Magomogo/Persisted/Container/ContainerInterface.php
	lib/Magomogo/Persisted/Container/Memory.php
	lib/Magomogo/Persisted/Container/SqlDb.php
	lib/Magomogo/Persisted/Container/SqlDb/SchemaCreator.php
- unnecessary fixture