These are already Horde_Date objects, no need for this.
Fix creating the initial alarm entry for a recurring event.

Don't assume we are always creating a recurrence series that
starts in the future.
Fix displaying alarms times for recurring events.
Use the original start/end for the time.

$start and $end are offset due to the alarm.
Fix using a local copy of the tz database.

Horde_Vfs_File() requires a vfsroot to be set, just read the file
in directly. Fixes Bug: 12773
Log this since it evidently causes so much angst when not found.
BFN