2.0.5

• #514: CalDAV PDO backend didn't work when overriding the 'calendar changes'
  database table name.
• #515: 304 status code was not being sent when checking preconditions.
• The zip release ships with sabre/vobject 3.3.3,
  sabre/http 2.0.4, and sabre/event 1.0.1.