hgweb: show dates recorded in obsolescence markers Dates of operations that obsolete commits are also important enough to be shown, but maybe not as important as original commit dates, that and also for brevity is why they are wrapped in a <span> with only "age" class. Provided that JS is enabled, such elements only show age (e.g. "3 months ago"), and the exact date is visible in a tooltip. Commits dates, on the other hand, show both date and age (the latter in parenthesis). Example result for f1a0933ce59e from hg-committed: obsolete: pruned by Yuya Nishihara <yuya@tcha.org> 13 days ago

gitweb: make span.age CSS selector more specific This set of CSS properties is only used on /changelog page to make age elements float to the left and be fixed in size, but span.a is too broad of a selector, because we don't want to apply these properties to all <span> elements that have age class.