Set a click handler on the table instead of on every row. This should
be faster on large tables. Also, it's easier to use: you just set the
clickable-rows class on the table, and the row-link class on the <a>
element that contains the "main" link of the row.
releases as a dynamic view on the database was misguided, since
doing thing like adding a new job to a release set will invalidate
all old releases. So we rename release sets to views, and we'll
reintroduce releases as separate, static entities in the database.
