Changed class descriptions.
Removed ImportDataDirectory and DateHelper
fixes #71, removes dependency on TestingBundle
Merge remote-tracking branch 'upstream/master' into mysql-mysteries

Conflicts:
	Tests/Functional/Command/SyncProvideCommandTest.php
Fixes after rename...
Fixes after rename...
Fixes after rename...
Move fixtures elsewhere
Move fixtures elsewhere
Increase phpunit code coverage
Fixes after code review.
Fixes after code review.
Merge remote-tracking branch 'upstream/master' into mysql-mysteries

Conflicts:
	Tests/Functional/Command/SyncProvideCommandTest.php
	Tests/Unit/Import/ImportServiceTest.php
	Tests/app/config/services.yml
	composer.json
Merge remote-tracking branch 'upstream/master' into mysql-mysteries, fix conflicts, fix failing tests.
Merge remote-tracking branch 'upstream/master' into mysql-mysteries, fix conflicts, fix failing tests.
Merge remote-tracking branch 'upstream/master' into mysql-mysteries, fix conflicts, fix failing tests.
Merge remote-tracking branch 'upstream/master' into mysql-mysteries, fix conflicts, fix failing tests.
remove generic ImportModifyEventListener.
make modify() abstract.
Removed unused services, parameters, updated documentation to reflect recent changes.