changelog: missing kit-monospace class on a link to short node

notfound: don't try to render breadcrumbs if repo is not found

kit: use CSS counters to render line numbers where possible Affects changeset, file view, file diff and file annotate pages. Doesn't affect file comparison page (aka side-by-side file diff). Page size, regular file view (mercurial/commands.py): - 987963 B before - 596244 B after Page size, changeset (4441705b7111): - 1319976 B before - 923672 B after

changeset: change margins on commit message so it fits the page better Previously, margins were used to visually separate commit message from author. Because of the left margin, it looked a bit out of place, so let's instead remove the left margin and increase the top one. This way it aligns better with surrounding blocks. Making commit message stand on its own on the page is now delegated to just monospace font. The difference with other blocks is not huge, but the whole theme is kinda minimalistic, so it should work.

changeset: move obsfateentry and whyunstableentry to the bottom, add badges

search: preserve search query in the <input>

changeset: explain instabilities

changeset: make successorlink use monospace font, add {rev} for consistency

changeset: show each obsfateentry on its own line

changeset: add users and dates to obsfateentry