Settings pages consistency

[Speedboxer]

Many of the settings page's text fields are different sizes (due to fixed-width fonts or what have you), we should use pixel width's (and not character widths) to keep them consistently sized.

[Speedboxer]

Make settings pages more consistent

[Speedboxer]

This patch adds classes large-text, regular-text and small-text and change the Settings pages text fields to use them. It also changes the submit buttons on Users and options.php to button-primary.

It also changes the .htaccess code on the Permalinks settings page to be readonly, which I'm hoping is okay (I don't see a reason for it to be editable). :)

[westi]

(In [9390]) Move inline styles to the stylesheets. Fixes #7985 props Speedboxer.

[Speedboxer]

Make readonly class work on textareas

[Speedboxer]

Opps, the readonly class is for inputs only, readonly-class-textarea.diff fixes that.

[westi]

(In [9419]) Apply styles to readonly textareas too. Fixes #7985 props Speedboxer.