Issue #996696 by ygerasimov, logaritmisk, fago, indytechcook, wizonesolutions, fearlsgroove, Damien Tournoud, stella: Support revisions in Entity API.

 Issue #1393690 by fubhy, linclark, tim.plunkett: make the "bundle of" key usable for non-fieldable entity types as well.

fixed module to be correctly stored when already existing entities are added as default. Fixes feature modules to avoid disappearing entities when newly created features are updated.

 Issue #1458568: added hook_{entity_type}_defaults_rebuild() for exportable entities, so modules may efficiently update their caches.

 #1399618 fixed rebuilding exportables to correctly delete disappeared defaults + improved performance when clearing caches.

 #1208864 patch by Damien Tournoud: API change: extended entity_view() to allow the caller to set the 'page' flag when rendering an entity.

 #1027908 patch by fago, drunken monkey: API change - entity_load() should always return entities keyed by ID, not name. See #1027908-50 for details.

 #1123236 patch by fago: Using hook_entity_info_alter to add bundles results in Notices on manage fields.

 #1008810 overhauled exportable entities so that all entities are stored in the database. Upgrade for modules making use of exportable entities is required, see #1008810-8.

 #988780 API Change: merged both modules into a single one. Read http://drupal.org/node/988780#comment-3834560 for a detailed description of the changes.