Remove useless check.
Horde_Core is not required
Fix form variable names
Bug #12130: Need to also check if HTML is part ID 1, not just a child of part ID 1
Fix undefined variable.
[jan] Only send update notifications for local calendars.
[jan] Don't send notifications for all recurrence exceptions when deleting events.
More fixes upstream (tweaks to patches previously applied here)
Better sanity checking for broken CSS
Inform the user if broken CSS data exists in the message
Convert non-period decimal points to periods
The phpdoc states this method can take IMP_Maillog:: constants. Make it so.
Catch HTTP exceptions when trying to download external HTML resources.
Better notification message if a task has been completed but is still incomplete due to recurrence.
[jan] Fix displaying of due dates of recurring events in basic list view.
Use the default value of RANGE if not specified, as per the specs.
RANGE is optional in requests, don't assume it's there.

Conflicts:
	framework/Core/lib/Horde/Core/ActiveSync/Driver.php
Prepare for beta release
Merge from upstream

commit 34fcc748a57ca601eb5dcc811c290a07a6def8bd
Author: Raphael Schweikert <any@sabberworm.com>
Date:   Thu Mar 21 20:13:11 2013 +0100

    Add more units and eliminate some duplicates

    see https://developer.mozilla.org/en-US/docs/CSS/length#Units
Bug #12124: Log details must be determined before queuing

Since we are dealing with things like backtraces, this needs to be
handled at the time the log request is made.

As part of this, remove locale/TZ code from formatting code since it has
no effect on the output (date() is both locale and TZ independent).