Issue #1495024 by Berdir, Rob Loach, fago: Convert the entity system to PSR-0.

core/includes/file.inc

core/modules/comment/comment.module

core/modules/comment/lib/Drupal/comment/Comment.php

...s/comment/lib/Drupal/comment/CommentStorageController.php

core/modules/entity/entity.api.php

core/modules/entity/entity.info

core/modules/entity/entity.module

core/modules/entity/lib/Drupal/entity/Entity.php

core/modules/entity/lib/Drupal/entity/EntityController.php

...es/entity/lib/Drupal/entity/EntityControllerInterface.php

...ity/lib/Drupal/entity/EntityDatabaseStorageController.php

core/modules/entity/lib/Drupal/entity/EntityFieldQuery.php

...es/entity/lib/Drupal/entity/EntityFieldQueryException.php

core/modules/entity/lib/Drupal/entity/EntityInterface.php

...les/entity/lib/Drupal/entity/EntityMalformedException.php

...ty/lib/Drupal/entity/EntityStorageControllerInterface.php

...dules/entity/lib/Drupal/entity/EntityStorageException.php

core/modules/entity/tests/entity.test

core/modules/entity/tests/entity_query.test

...dules/entity/tests/modules/entity_test/entity_test.module