do not underline link in joyride tour next button
prevent horizontal scrollbars on pages with div.dir-search
fix display of avatars in IE8
fix display of menubar avatar in IE8
add fallback background-color for IE8
fix whats-new avatar for IE8
fixes avatars for group admins & mods and groups home
fix WP Editor styles in forums
Merge pull request #160 from christianwach/master

EDIT: Layout and design fixes