Improve the include / exclude SQL generation in `get_pages()` by using `IN` and `NOT IN` where applicable. Adds unit tests for include / exclude.

Fixes #22074.


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No need to re-map the return values of `wp_parse_id_list()` to int. 

See #22074, #11823.


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Avoid validating wildcard hostnames in populate_network() when multisite is already activated.

props jeremyfelt.
fixes #25182.

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Move wp-config-sample.php to the root of develop.svn.

wp-config.php is now created in the root. wp-config-sample.php is properly copied over to the build directory for syncing to core.svn.

Add some ignores.

fixes #25185, see #24976.


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Check for a WP_Error return from wp_create_user() in register_new_user().

props coffee2code.
fixes #14290.

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