Logging in: when the Remember Me checkbox is checked, make sure the browser continues to send the expired cookies so the "login grace period" for POST and AJAX requests works. Fixes #24735.

git-svn-id: http://develop.svn.wordpress.org/trunk@25107 602fd350-edb4-49c9-b593-d223f7449a82
Use `reset()` to grab the first taxonomy in an array, not by numerical index. Cleans up whitespace. Props webord, nbachiyski. Fixes #23506. 


git-svn-id: http://develop.svn.wordpress.org/trunk@25108 602fd350-edb4-49c9-b593-d223f7449a82
User state settings:
- Allow empty cookie value to be saved.
- Use get_current_user_id() instead of wp_get_current_user().
- Use is_user_member_of_blog().
- Sanitize both name and value in wp_set_all_user_settings().
- Some var names and code formatting cleanup.
Fixes #24921.

git-svn-id: http://develop.svn.wordpress.org/trunk@25109 602fd350-edb4-49c9-b593-d223f7449a82
Correct phpdoc for WP_Query::$post. props lgedeon, fixes #25130.


git-svn-id: http://develop.svn.wordpress.org/trunk@25110 602fd350-edb4-49c9-b593-d223f7449a82
Multisite tests: Update default space allowed in get_space_allowed(). see #23650, [25092].


git-svn-id: http://develop.svn.wordpress.org/trunk@25111 602fd350-edb4-49c9-b593-d223f7449a82
Have wp-signup.php match the proper default for the 'registration' network option.

props wpmuguru.
fixes #18186.


git-svn-id: http://develop.svn.wordpress.org/trunk@25112 602fd350-edb4-49c9-b593-d223f7449a82
Deprecate $network_id argument in get_blog_count(). props jeremyfelt. fixes #25129.

git-svn-id: http://develop.svn.wordpress.org/trunk@25113 602fd350-edb4-49c9-b593-d223f7449a82
Avoid a fatal error in WP_Http::request() if $response is a WP_Error instance. props dllh, nacin. fixes #24987.

git-svn-id: http://develop.svn.wordpress.org/trunk@25114 602fd350-edb4-49c9-b593-d223f7449a82
Remove 'admin' as a fallback for username in install. props tivnet, DrewAPicture. fixes #24078.

git-svn-id: http://develop.svn.wordpress.org/trunk@25115 602fd350-edb4-49c9-b593-d223f7449a82
Update the directory reference in tests/README.txt. props jdgrimes. fixes #25133.

git-svn-id: http://develop.svn.wordpress.org/trunk@25116 602fd350-edb4-49c9-b593-d223f7449a82
Avoid displaying multiple instances of the same feature pointers on a single screen. props nacin. fixes #25022 for trunk.

git-svn-id: http://develop.svn.wordpress.org/trunk@25117 602fd350-edb4-49c9-b593-d223f7449a82
Make in_category() an alias of has_category(). fixes #16718.

git-svn-id: http://develop.svn.wordpress.org/trunk@25119 602fd350-edb4-49c9-b593-d223f7449a82