Add a test case for calling get_page_uri() with a non-existent post.

see #24491, [25262].


git-svn-id: http://develop.svn.wordpress.org/trunk@25265 602fd350-edb4-49c9-b593-d223f7449a82
Add docs to the woefully under-documented `get_pages()`.

Props DrewAPicture.
Fixes #25186.



git-svn-id: http://develop.svn.wordpress.org/trunk@25266 602fd350-edb4-49c9-b593-d223f7449a82
Twenty Fourteen: further styling for medialement players, props iamtakashi. Fixes #25209.

git-svn-id: http://develop.svn.wordpress.org/trunk@25267 602fd350-edb4-49c9-b593-d223f7449a82
Fix spacing in docs for `get_pages()`.

Props DrewAPicture.
See #25186.



git-svn-id: http://develop.svn.wordpress.org/trunk@25268 602fd350-edb4-49c9-b593-d223f7449a82
Move `get_meta_type()` into the `WP_Meta_Query` class as `get_cast_for_type()`. `WP_Query` can then access it like: `$this->meta_query->get_cast_for_type()`.

See #21621, [25255].



git-svn-id: http://develop.svn.wordpress.org/trunk@25269 602fd350-edb4-49c9-b593-d223f7449a82
Simplify the check for false-y `child_of` arg.

Props SergeyBiryukov.
See #25230, [25245].



git-svn-id: http://develop.svn.wordpress.org/trunk@25270 602fd350-edb4-49c9-b593-d223f7449a82