Twenty Thirteen as default theme

[JustinSainton]

Now that we're shipping with twentythirteen in trunk, it seems like it should probably be given the same loving preference and protection as the other defaults.

Patch attached.

[SergeyBiryukov]

sidebars_widgets option in wp-admin/includes/upgrade.php and $_new_bundled_files array in wp-admin/includes/update-core.php need to be updated as well, see [22054].

​http://core.trac.wordpress.org/browser/tags/3.5.1/wp-admin/includes/upgrade.php#L214
​http://core.trac.wordpress.org/browser/tags/3.5.1/wp-admin/includes/update-core.php#L541

[JustinSainton]

Probably default constant as well?

[nacin]

Full list of things that need to change:

• WP_DEFAULT_THEME
• WP_Theme
• nav-menus.php help text
• admin/includes/update-core.php $_new_bundled_files
• sidebar_widgets and related options

[JustinSainton]

23573.1.diff addresses the following -

• WP_DEFAULT_THEME constant
• $_new_bundled_files in admin/includes/update-core.php
• $default_themes in WP_Theme (Assuming that's the only area in WP_Theme you were referring to?)
• sidebar_widgets option in admin/includes/upgrade.php. I'm not familiar enough with the neighboring options and how they've been considered in Twenty Thirteen to make educated changes there. Not yet, at least. Like the Twenty Eleven > Twenty Twelve changes, maybe nothing else changes?
• Still need to change the nav-menus.php text. Patch forthcoming.

[JustinSainton]

23573.2.diff includes changes to the nav-menus.php file, changing Twenty Twelve and Twenty Eleven to Twenty Thirteen and Twenty Twelve.

[nacin]

In 23529:

Make Twenty Thirteen the default theme.

Has the added benefit of ensuring the WordPress Beta Tester plugin allows updates of Twenty Thirteen.

props JustinSainton.
fixes #23573.