Change-Id: If606203218ece5974a956a3d41d5db40f55b2d5c fixed bug 33438 (misuse of <strong> in SpecialPreferences.php's successbox) by making *all* errorbox, successbox, and warningbox text bold, even in the many forms that don't want this.

In particular, this makes Create account form errors, which can go on for paragraphs (e.g. those from the AntiSpoof extension), into swaths of ugly bold text. And to fix 47691 I added a <strong>Account creation error</strong> to Create account's errorbox, but now this heading is indistinguishable from the error text.

The change to skins/common/shared.css needs to be reverted. Forms that want bold text in {error,success,warning}box should either apply an additional CSS style (e.g. a .mw-bold utility style), or use a CSS selector (e.g. .mw-special-Preferences .successbox) that only bolds in forms that want it.

Version: 1.22.0
Severity: major