Issue: Accessibility - Tab Index Problems

Many form elements thoughout VaultWiki's forms are missing or have arbitrary tabindex attribute values. Each element should have tabindex=1 so that the browser can tab through them in order of appearance, regardless of any template edits, etc.

Fixed for the next build, for vBulletin 4 only at this time. While we will continue to support and add degraded features for vBulletin 3, fixes like these may only be applied to vBulletin 4 templates.