screenShield: Accept scrolls / swipes either way

If you turn on natural scrolling, instead of swiping up, you need to
swipe down, which is bizarre. Just accept any type of scroll and have
them contribute to the delta.

https://bugzilla.gnome.org/show_bug.cgi?id=734874
appDisplay: Animate folder view items

Add a new animation  to folder view based on designers mockups that
emulates pulsating icons.
The code on iconGrid is though to work well for the upcoming patches to
animate AllView and FrequentView.

https://bugzilla.gnome.org/show_bug.cgi?id=734726
appDisplay: Animate AllView and FrequentView

Following design decision, we want to animate AllView and FrequentView
when opening and closing with a swarm spring form.

This involves a few changes needed to allow that, since from some time
now, we are animating page changes in viewSelector, using only a fade
transition. However now we want to let appDisplay and iconGrid apply its
own animation.

For that we special case the change to and from apps page on
viewSelector to let appDisplay to animate its own items, using and API
on appDisplay which at the same time uses an API on iconGrid.

Thanks Florian Müllner for the debugging work

https://bugzilla.gnome.org/show_bug.cgi?id=734726
appDisplay: Animate indicators out

Given that we animate indicator in, it makes sense to animate them out
as well.
Also make possible animating indicators between view changes as well.

https://bugzilla.gnome.org/show_bug.cgi?id=734726
shell-glsl-quad: Provide a paint volume

To prevent from falling back to the slow path of doing a full-stage
repaint every time.
search: Allow providers to return the complete result object

 This makes the existing createResultObject() match its name better
 and avoids oddities like nested StButtons in app search results.

https://bugzilla.gnome.org/show_bug.cgi?id=734726
appDisplay: Animate appIcon for new window of apps

Following design mockups, animate the icons on AllView, FrequentView,
Dash and Search to zoom out when opening a new window of the app or when
the app is not running and the user execute it.

https://bugzilla.gnome.org/show_bug.cgi?id=734726
search: Remove DND code from GridSearchResult

Providers that need drag-and-drop behavior can implement this via the
createResultObject() hook (as the app search provider already does), no
need to duplicate that code in the generic result objects
(ListSearchResult already does not implement DND).

https://bugzilla.gnome.org/show_bug.cgi?id=734726
overviewControls: Fix typos in comment
overviewControls: Don't update translation on slideIn()

The comment is right, updating the translation should be deferred
to pageEmpty, or else overview controls will just pop up instead
of sliding in. So revert that part of commit 6a7fa52879d53.
overviewControls: Fix initial slide-in animation

Controls are slided in by animating translationX from the actor's
width to 0; however as _updateTranslation() will skip the animation
when the property is already at its target value and 0 happens to be
the initial value of translationX, the initial animation is skipped.
Fix this by initializing translationX to undefined, which will always
differ from a valid target value.
overviewControls: Use correct translation in dragBegin

Commit 12845f0eefa reset translationX to 0 to fix the slide-in
animation of the dash when dragging a search result, but 0 is the
wrong value for the thumbnail slider - the next time it will be
shown, it will just pop up instead of sliding in due to translationX
already being at its target value.
Fix this by making _updateTranslation take the actual visibility into
account and call that to set the correct translation in dragBegin.
Updated Indonesian translation
keyboard: Monitor the ShowOSK property of g-s-d

Show the on-screen keyboard if gnome-settings-daemon requests that it
should be shown, such as when using a touchscreen input device. Do this
in addition to monitoring the accessibility setting for the OSK.

https://bugzilla.gnome.org/show_bug.cgi?id=702015
iconGrid: Make actors non reactive while animating

Although the actor are with opacity 0, they were reactive, so the if the
user quickly make a click on the grid while animating it can launch an
app accidentally.
To avoid that make the actors non reactive while animating.
iconGrid: Fix a typo

It was making icons of the spring animation going/returning to the wrong
position of the dash icon.
keyboard: Update for new code

_cursorChanged was folded into _sync at some point.
Bump version to 3.13.91

Update NEWS.
Updated Polish translation
popupMenu: Force submenu arrow rotation angles to multiples of 90

When you open or close a PopupSubMenu the arrow icon rotates, but
the code previously assumed that the starting angle was a multiple
of 90.  If you click the submenu fast enough the rotation could overlap
with the previous rotation and you'd get something that wasn't a multiple
of 90.
Now we ensure that the ending arrowRotation angle is always a multiple
of 90 regardless of what the starting angle is.

https://bugzilla.gnome.org/show_bug.cgi?id=728927