Reengineered locales
Moved request listening to LocaleHelper
Removed references to deprecated Symfony Locale component
Code cleaning
Corrected locale helper service definition
Fixed PIM-1177
Merge remote-tracking branch 'origin/master' into feature/locales

Conflicts:
	src/Pim/Bundle/CatalogBundle/Helper/LocaleHelper.php
	src/Pim/Bundle/CatalogBundle/Tests/Unit/Twig/LocaleExtensionTest.php
Removed unneeded files
Reengineered currencies to use ICU
Updated behat tests
add unit test for create product value
add unit test for create product
add unit tests for locale and scope
Changed length of locale field
Fixed CS
Merge branch 'master' into product_manager_unit_test
Merge pull request #321 from akeneo/product_manager_unit_test

Product manager unit test
Merge branch 'feature/locales'
Fix quick export regression
add import and export directories in write permission section