Merge pull request #1 from cubalider/master

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Included "dql-fit" into composer.json
Added "Fit" classes.
Refactored BulkManager using "dql-fit"
Refactored BulkManagerTest using "dql-fit"
Merge pull request #5 from mectwork/bulk-with-dql-fit

Refactored BulkManager using dql fits