Fix pprof generated index html.
Merge pull request #261 from frankban/fix-pprof-index

Fix pprof generated index html.
Update dependencies to include the last utils package.
Merge pull request #262 from frankban/update-dependencies-utils

Update dependencies to include the last utils package.
Update search index when legacy-download-stats are set.

As part of the legacy statistics support, update the search index
every time the legacy-download-stats value is changed.