#29 Accept timezones without TZOFFSETFROM

[Kent]

Outlook for Mac — and maybe other versions — will create time zones without a TZOFFSETFROM property:

BEGIN:VTIMEZONE
TZID:(UTC+10:00) Brisbane
X-ENTOURAGE-CFTIMEZONE:
BEGIN:STANDARD
TZOFFSETTO:+1000
DTSTART:16010101T000000
END:STANDARD
END:VTIMEZONE

This is against the RFC, but Outlook and iCal seem to be alright with it. They're created this way for time zones that don't change for DST. The current behavior is events using this time zone ignore the offset completely and use UTC.

[Kent]

[Allen Winter]

thanks for the patch.
committed rin r1116