hgweb: show changeset age in more places (gitweb and monoblue) mercurial.js has a process_dates() function that calculates relative age for a given date, it works for all elements with "age" css class. If those elements also have "date" css class, the original text is preserved and age is added at the end. This patch adds these two css classes in some pages in gitweb and monoblue that weren't already using this feature.