Blocked revisions 197738 via svnmerge

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  r197738 | twilson | 2009-05-28 14:57:18 -0500 (Thu, 28 May 2009) | 19 lines

  Add Calendaring support for Asterisk

  This commit add Calendaring support to Asterisk for iCalendar, CalDAV, and MS
  Exchange calendars. Exchange support has only been tested on Exchange Server 2k3
  and does not support forms-based authentication at this time (patches *very*
  welcome). Exchange support is also currently missing the ability to return a
  list of a meting's attendees (again, patches are very, very welcome).

  Features include:
    Querying a calendar for events over a specific time range
    Checking a calendar's busy status via the dialplan
    Writing calendar events via the dialplan (CalDAV and Exchange only)
    Handling calendar event notifications through the dialplan

  (closes issue #14771)
  Tested by: lmadsen, twilson, Shivaprakash

  Review: https://reviewboard.asterisk.org/r/58
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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.1@197780 65c4cc65-6c06-0410-ace0-fbb531ad65f3