3980 Inconsistent class names for work/bookmark indexes/listboxes

https://code.google.com/p/otwarchive/issues/detail?id=3980

> Our work indexes/listboxes should be class="[optional modifier] work index/listbox group" and our bookmark indexes/listboxes should be "bookmark index/listbox group." Some places said works or bookmarks, some places were missing group. This makes it a pain in the backside to style things. "Hey, why aren't the bookmarks on the bookmark index getting their purple background? Oh, because they don't have the group class, so `.group { background: purple; }` isn't applying. And why aren't the works in history displayed in Wingdings? Oh, because it's 'reading index group' instead of 'reading work index group,' so `.work .blurb { font-family: Wingdings; }` isn't applied there." This makes front end coders miserable, and it makes Support miserable when they try to suggest CSS solutions to users only to have them not work as expected.