Fix broken spec of ResourceBundle/EntityRepository
Fixing standalone bundles requirements during installation.
When no data is sent use default values for sorting labels
Removed check for empty values
Add support for n-number of database factories to easily be configured and used. This is important for being able to support custom ORM's
Delete old file
Add checks for finding a factory
- Update SyliusResourceBundle to add the default factories to the extension class. This was missed in the first commit
Merge pull request #749 from Limelyte/multiple-database-factories

Ability to easily add factories to create configuration for different driver types
Adjust README files along all bundles [ci skip]