Agnosticized the Database Product Reader
Position MongoDB Cursor on the first element
Added mongo references between media product and value
Don't trust the product csv line order
Merge branch 'master' into mongo/export-product
Travis cache is for paid account only
Activated mongo ext on travis
Fixed specs
PIM-2245 Do not wait for page loading when executing job

As the job execution page contains ajax calls and the wait() method is
waiting for page ajax request to finish (!$active), it can wait
infinitely (or at least more than 10 seconds which is the upperbound
before crashing).
PIM-2245 Prevented querying the attribute table from the product repository

It breaks the Single Responsibility Principle
PIM-2245 Ensured Metric and Price string format

ODM casts them into double which drops decimals when casting into string
PIM-2245 Manipulate prices in transformer through product builder
PIM-2245 Regex power (and heavyness) is not required here
PIM-2245 Added missing method in the product builder
Merge branch 'master' into mongodb/import-product

Conflicts:
	src/Pim/Bundle/CatalogBundle/Doctrine/MongoDBODM/ProductRepository.php
	src/Pim/Bundle/CatalogBundle/Manager/ProductManager.php
	src/Pim/Bundle/CatalogBundle/Model/ProductValue.php
PIM-2245 Removed identifier injection in the mongodb product repository
PIM-2316 : add enabled filter
PIM-2316 : define the new filter service
PIM-2316 : update the datagrid configuration to use the new filter
Merge pull request #925 from akeneo/mongo/export-product

Adapted the product export with MongoDB