- calculate multiselect header width to exclude scrollbar
- call FileList._onResize() when sidebar is toggled ("appresized"), this
  also updates the breadcrumb width
- moved global getScrollBarWidth() to OC.Util namespace

* fixes #18627

Added hack that uses a "filter" CSS with explicit URL to fix the "New"
menu by scaling down icons and also fix the folder/filetype icon in the sidebar
by scaling it up.

If a response to a $.ajax() request returns a content type of "application/javascript"
JQuery would previously execute the response body. This is a pretty unexpected
behaviour and can result in a bypass of our Content-Security-Policy as well as
multiple unexpected XSS vectors.

Controls bar calculation needs to take the sidebar visibility into
account.

Recalculation is now triggered when sidebar is toggled, using a new
app-content event "appresized".

FileActionsMenu is now a backbone view.
The trigger and highlight handling is now done in the
FileActions.showMenu() method using events.

File actions now have two types "inline" and "dropdown". The default is
"dropdown".
The file actions will now be shown in a dropdown menu.

Tipsy also supported the `fallback` element which will now not work anymore. To enhance compatibility we shall also implement it in the shim.

Fixes https://github.com/owncloud/core/issues/17870

These should be used in the future instead of location.*.
It will make it possible to stub these methods for writing unit tests
and simulating different URL schemes.

When empty arguments are given, the leading or trailing slash was not
detected properly.

* fixes #12326 - the settings menu is closed now, because the event is executed

Use local time instead. http://momentjs.com/

Use correct time format in WebUI

This reverts commit 8279dde9.

Update how the time shows in WebUI.

My first PR to core, woha. :)