• Added: It's now possible to specify in Sabre_DAV_Client which type of
  authentication is to be used.
• Fixed: Issue 206: Sabre_DAV_Client PUT requests are fixed.
• Fixed: Issue 205: Parsing an iCalendar 0-second date interval.
• Fixed: Issue 112: Stronger validation of iCalendar objects. Now making sure
  every iCalendar object only contains 1 component, and disallowing vcards,
  forcing every component to have a UID.
• Fixed: Basic validation for vcards in the CardDAV plugin.
• Fixed: Issue 213: Workaround for an Evolution bug, that prevented it from
  updating events.
• Fixed: Issue 211: A time-limit query on a non-relative alarm trigger in a
  recurring event could result in an endless loop.
• Fixed: All uri fields are now a maximum of 200 characters. The Bynari outlook
  plugin used much longer strings so this should improve compatibility.
• Fixed: Added a workaround for a bug in KDE 4.8.2 contact syncing. See
  https://bugs.kde.org/show_bug.cgi?id=300047
• Fixed: Issue 217: Sabre_DAV_Tree_FileSystem was pretty broken.