[horde] Can't add Outlook meeting request to Kronolith

[Oscar del Rio]

On 01/ 8/13 03:07 PM, Michael M Slusarz wrote:
> "W. Europe Standard Time" is not a valid timezone, as the error 
> message indicates.

Similar error when accepting event invitations from Exchange users but 
with "Eastern Standard Time" here.

HORDE: [ID 702911 user.emerg] [kronolith] DateTimeZone::__construct(): 
Unknown or bad timezone (Eastern Standard Time) on line 285 of 
"/var/php/5.3/pear/Horde/Date.php"

The following is a test request from Exchange that triggers the error:

BEGIN:VCALENDAR
METHOD:REQUEST
PRODID:Microsoft Exchange Server 2010
VERSION:2.0
BEGIN:VTIMEZONE
TZID:Eastern Standard Time
BEGIN:STANDARD
DTSTART:16010101T020000
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=1SU;BYMONTH=11
END:STANDARD
BEGIN:DAYLIGHT
DTSTART:16010101T020000
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=2SU;BYMONTH=3
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VEVENT
ORGANIZER;CN=User Name:MAILTO:test.user at domain.ca
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=User 
Name:MAILTO:test at domain.ca
DESCRIPTION;LANGUAGE=en-US:Test event\n\n
SUMMARY;LANGUAGE=en-US:test111
DTSTART;TZID=Eastern Standard Time:20130111T110000
DTEND;TZID=Eastern Standard Time:20130111T113000
UID:040000008200E00074C5B7101A82E0080000000090CFD7D67EEECD01000000000000000
  010000000635EEFA31445FB45B2734CB0B8C398FD
CLASS:PUBLIC
PRIORITY:5
DTSTAMP:20130109T203440Z
TRANSP:OPAQUE
STATUS:CONFIRMED
SEQUENCE:0
LOCATION;LANGUAGE=en-US:test
X-MICROSOFT-CDO-APPT-SEQUENCE:0
X-MICROSOFT-CDO-OWNERAPPTID:1422464989
X-MICROSOFT-CDO-BUSYSTATUS:TENTATIVE
X-MICROSOFT-CDO-INTENDEDSTATUS:BUSY
X-MICROSOFT-CDO-ALLDAYEVENT:FALSE
X-MICROSOFT-CDO-IMPORTANCE:1
X-MICROSOFT-CDO-INSTTYPE:0
X-MICROSOFT-DISALLOW-COUNTER:FALSE
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:REMINDER
TRIGGER;RELATED=START:-PT15M
END:VALARM
END:VEVENT
END:VCALENDAR