This reverts commit 154a72b0.

This reduces the period of time that some of the unit tests
for calculate_next_automated_backup() are failing right now
(from 1week to just some hours around the DST changes).

Note it's not the final solution because they will still fail
when New_York or Brussels DST changes are about to happen, but
to get this completely fixed we'll need to wait to switch from
current custom TZ/DST support to PHP built-in one.

Credit goes to Nadav Kavalerchik for fixing it @ MDL-36033

Thanks Rosie!

AMOS BEGIN
 CPY [close,editor],[close,form]
AMOS END

MDL-31934 mod/forum: Added CSS fix to mod/forum/styles.css for unread forumposts also reversed a previous commit in theme/base/core.css.

We don't translate cronjobs

This code was only called in one path and so was not necessary.

Be extra safe for potential debugging purposes

Conflicts:
	lib/db/upgrade.php
	version.php

MDL-16660 calendar: Cleaned u several areas of the iCal patch in preparation of the next peer-review

* Added a bit of AMOS to copy existing strings and save a little translation effort
* Cleaned up fixed strings in several places
* Cleaned up some existing strings as required.
* Fixed install and upgrade code. Split upgrade into two parts (one for each table).
* Fixed fatal error caused by missing forms lib inclusion
* Added param types to forms.
* Converted file_get_content to use curl for URL's.
* Cleaned things up per coding style.
* Separated subscription management and form into separate files.
* Tidied up bennu inclusion to just where required.
* Lots of other small fixes as well.

AMOS BEGIN
  CPY [calendar,calendar],[colcalendar,calendar]
  CPY [actions,moodle],[actions,calendar]
  CPY [never,moodle],[never,calendar]
AMOS END

Adds an extra import section alongside the existing export in the
calendar views. Allows the user to import from either a file or a
URL as a subscription, with an optional polling interval of hourly,
daily, weekly, monthly, or annually. This subscription may be added
to the user, group, global or course calendars. These subscriptions
are tracked in a separate database table, and an extra column added
to the events table to relate them to the subscription. The event
uuid field is also expanded to allow for the RFC-2445 UID property.
Subscriptions are listed on the calendar view page, and can be
added and removed, manually polled, and the polling interval
adjusted. Subscription events are updated on cron.