Create a navigation context for behat
Move PageFactory to NavigationContext
Move  to the NavigationContext
Move page mapping to NavigationContext
Move navigation related method to NavigationContext
Move behat authentication to NavigationContext
Fix phpcs
Merge pull request #384 from akeneo/behat-navigation-context

Create a navigation context for Behat
Move navigation-related methods to NavigationContext
Fix subcontexts used in DataGridContext
Remove unused method
Clean up WebUser
Merge pull request #386 from akeneo/behat-navigation-context

Behat navigation context
Simplify behat scenario for sorting associations
Merge branch 'master' into PIM-1265