Editing the Depends On field on a review request caused the generated

links to no longer have the CSS classes necessary to attach infoboxes.

The Bugs and Reviewers fields worked around this, but they had to

implement this themselves, and it wasn't consistent.
The function for creating a list of URLs for injecting into the field

(urlizeList) now takes an options parameter, instead of positional

arguments, for the building functions. One of those options is a CSS

class to apply to each link. The Bugs, Reviewers, and Depends On fields

now take advantage of this, receiving links that they can then easily

attach infoboxes to.
urlizeList also makes use of convertToLink, which is where the new

option support ultimately lives. This allows us to stay consistent

between the two link-building functions.
Both also now return jQuery elements, instead of building and returning

a string.

Edited all affected fields, making sure the links built correctly with

various numbers of values. Checked that all CSS classes were applied and

that infoboxes worked.