So phantomjs can perform complete runs without breakage.

remove z-index fix and instead keep the header from gaining the opacity
change on hide

Event generation and completion should be generated only once.

Adam Olley authored Sep 30, 2015 and David Monllaó committed Sep 30, 2015

As the icon has a float on it to move it to the right, a margin-top
needs to be applied to keep it aligned the same as in ltr.

Note: Fixed small bug in unit test.

This adds the following changes when viewing a list of discussions and
forum_enabletimedposts is turned on.

* Discussions a student wouldnt see right now are dimmed (timestart in
  future or timeend in the past).
* A icon appears next to the discussion subject, the tooltip for this
  icon displays the display start and/or end time. This only appears for
  the user that made the discussion or has permission to
  viewhiddentimedposts.

These two changes achieve a couple of important things, namely, teachers
will not mistakenly think their students can see a discussion when
viewing the list if they've later forgot that they set a time limit on
it (or indeed if someone else put it on their discussion without them
realising). Additionally it makes it easy to see from the list when
different discussions are set to be released without having to go in and
edit them to find out.

Change-Id: Ia1818b33c00adae0dad72df8e170a078fb66cd76

The fields are:
- username
- idnumber
- institution
- department

This patch fixes the updating of calendar events when the course
is reset and its start date is changed.

The YUI notification dialogues will now set the appropriate
aria attributes when they are shown/hidden to allow screen
readers to navigate them correctly.

When the dialogue is shown all background elements will be marked
as hidden while the dialogue is marked as visible to a screen reader.

When the dialogue is closed the modified elements will be reverted
to their previous state and the dialogue will be marked as hidden to
a screen reader.