Bug 1093828 - Add a site wide banner to warn users that the database is read-only
close readonly banner js - props to peterbe
Merge pull request #77 from bobsilverberg/readonly_banner

Bug 1093828 - Add a site wide banner to warn users that the database is read-only
Fix links in README

Used http://rst.ninjs.org/ to make sure it works.
fixes bug 1102298 - Add a /contribute.json