hgwebdir: refresh configuration periodically...
hgwebdir: refresh configuration periodically
The old default behaviour of hgwebdir was to maintain a list of
repositories permanently. This interacted badly with persistent
application hosting software such as WSGI containers. If a new repository
was published, it would potentially never appear in the top-level list
of repositories.
This change causes the hgwebdir configuration and list of repositories
served to be refreshed periodically (at most every 20 seconds).
