In WP_User::get_data_by(), don't abs int negative IDs. Instead, return false when an ID less than 1 is passed.

Props nacin, mordauk
fixes #23480


git-svn-id: http://core.svn.wordpress.org/trunk@24316 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Revert [24291] pending further discussion and sleuthing. see #24364.



git-svn-id: http://core.svn.wordpress.org/trunk@24317 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Compress scripts/styles: 3.6-beta3-24318.

git-svn-id: http://core.svn.wordpress.org/trunk@24318 1a063a9b-81f0-0310-95a4-ce76da25c4cd