Added test for YamlReader and refactored code
Removed useless code
Fixed CS
updated phpdoc
Rename ProductAssociation to Association
Added unit tests and removed unused methods
Added unit tests
Added tests and unit tests
Remove flush that caused Association to be saved when product was only edited
Merge pull request #629 from akeneo/refactor/productassociation_to_association

Rename ProductAssociation to Association
PIM-1776 Add reference collection
Merge branch 'master' into mongodb/PIM-1776-benoit

Conflicts:
	src/Pim/Bundle/CatalogBundle/Resources/config/doctrine/Association.orm.yml
	src/Pim/Bundle/CatalogBundle/Resources/config/model/doctrine/Product.orm.yml
Rename missing associations fixtures
Merge branch 'master' into mongodb/PIM-1776-benoit