hgweb: adopt child nodes in ajaxScrollInit on /graph pages too ajaxScrollInit is a function that loads more elements (e.g. changelog entries) when browser window is scrolled down to the bottom of the page. It basically fetches the next page from the server as HTML, finds container element in that document and "adopts" (essentially, moves) all its child nodes to the container in the current document. Currently, hgweb doesn't render any changesets on /graph page (everything is done in JavaScript), so there are no children to adopt. But there will be soon, so let's create a reusable function that does it. Hardcoding #graphnodes selector is suboptimal, but graph code already does this in two other places.

lfs: enable the extension locally after converting to an 'lfs' repo This is consistent with clone and share in the previous commits.

lfs: enable the extension locally after sharing a repo with 'lfs' requirement This is consistent with clone in the previous commit.

lfs: enable the extension locally after cloning a repo with 'lfs' requirement We do the same thing on clone for the largefiles extension, as a convenience. Similar to largefiles, it's probably safer to only enable this extension on a per repo basis because it is trivial to add an lfs file. And that gives the repository some centralized VCS characteristics.

log: translate column labels at once (issue5750) This makes sure that all columns are aligned. getlogcolumns() is hosted by templatekw so the namespaces module can see it. i18n/de.po is updated so test-log.t passes with no error. "obsolete:" and "instability:" are kept untranslated.

log: remove temporary variable 'date' used only once

merge with stable