Issue #789484 by Lars Toomre, pillarsdotnet, michaellenahan, sven.lauer, Mac_Weber: Fixed Confusing documentation for  argument in hook_access()/hook_node_access().

Issue #789484 by Lars Toomre, michaellenahan, sven.lauer: Fixed Confusing documentation for  argument in hook_access()/hook_node_access().

Issue #1258176 by sven.lauer: API doc for element_children() is only useful for people who already know what 'children' are.

Issue #237634 by salvis: Rename node_access_write_grants() to _node_access_write_grants() and discourage its use.

Issue #253725 by jhodgdon: Fixed () in search results does not have array keys on comments and uploads values.

#898360 by sun, catch: Cache node types - saves 7% in MySQL in sites using memcache for caching backend

- Patch #920614 by agentrickard, chx, Damien Tournoud: unpublished content visible when a Node Access module is enabled.

- Patch #241364 by maartenvg, sun, effulgentsia: () not passed to hook_validate()/hook_node_validate(), and not passed by reference to hook_form().

- Patch #353458 by quicksketch, drewish, jpetso, sun, noahb, aaron, chx, mikey_p, dhthwy: hook_file_references() was not designed for a highly flexible field storage.

- Patch #721754 by Shellingfox, lotyrin, Damien Tournoud, chx, hefox, Gábor Hojtsy, puregin: a node cannot be displayed in different view mode on its own page.

- Patch #735800 by effulgentsia, fago, Frando: node form triggers form level submit functions on button level submits, without validation. Oh yeah.

- Patch #708974 by jhodgdon: documentation improvements: provide an overview of ex-hook_nodeapi() operations.