Reengineered locales
Moved request listening to LocaleHelper
Removed references to deprecated Symfony Locale component
Code cleaning
Corrected locale helper service definition
Prepend PIM TwigBundle configuration
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
Removed twig global "env"

This is redudant with the existing "app.environment" variable
Reengineered currencies to use ICU
Prepended other TwigBundle configurations
Updated behat tests
Prepended PIM AsseticBundle configuration
Prepended PIM DoctrineBundle configuration
Prepended the PIM KnpPaginatorBundle configuration
add unit test for create product value
Prepended the PIM FosRestBundle configuration
Prepended the PIM FOSJsRoutingBundle configuration
Prepended PIM BeSimpleSoapBundle configuration