Do not autofocus text fields on page load on mobile devices. This is currently broken in many mobile browsers:
- iOS Safari opens the keyboard and auto-scrolls on the first tap anywhere on the screen triggering the click at an unexpected place. That makes it impossible to follow links or press buttons.
- Chrome on iOS opens the keyboard on load and may scroll the focused field off screen.
- The Android 4.4 browser only highlights the field, the user has to tap it to open the keyboard and type.

Merges [30842] to the 4.1 branch.

See #30703.

Built from https://develop.svn.wordpress.org/branches/4.1@30908


git-svn-id: http://core.svn.wordpress.org/branches/4.1@30898 1a063a9b-81f0-0310-95a4-ce76da25c4cd
iOS: do not autofocus the readonly textarea with the code for wp-config.php in setup-config.php.

Merges [30843] to the 4.1 branch.

Fixes #30703.

Built from https://develop.svn.wordpress.org/branches/4.1@30909


git-svn-id: http://core.svn.wordpress.org/branches/4.1@30899 1a063a9b-81f0-0310-95a4-ce76da25c4cd