Release 0.17

Highlighted features

• There is some initial support for making a request to multiple
  authorities at once.
• There is a new form for users to request that a new authority should
  be added, or to request an update to the contact email used for an
  authority. Site admins are emailed about these requests, and can
  resolve them from the admin interface.
• For attachments where we rely on Google Document Viewer to display the
  HTML version, link to the HTTPS version where the Alaveteli site is
  served over HTTPS to avoid mixed content warnings and non display in
  some browsers (Matthew Somerville).
• The 'view requests' page now has some fragment caching backed by
  memcached to speed up serving commonly used lists of requests - e.g
  all successful requests. Like the caching introduced in release 0.16,
  this is controlled by the CACHE_FRAGMENTS parameter in the config
  file and will be on by default.
• A user's annotations can now be seen on their admin page (Andrew
  Black)
• Better detection of the quoted text of a previous email in the HTML
  parts of responses.
• Fixed bugs in the profile photos (György Peng), calendar translations
  (Mark Longair), the use of external utilities (Ian Chard), the
  internal admin authority locale handling (Mark Longair), badly formed
  attachment handling (Rowan Crawford).