QMenuPrivate: Make sloppyDelayTimer non-static

Keeping the timer static would trigger warnings when enabling
SH_Menu_SloppySubMenus in QCommonStyle in a forthcoming patch.
This would happen if we opened a second level submenu quickly
enough and get the mouse event handler to reset the timer its
parent menu started.

This is a backport of Ia768603b40b219f87138c60a595c65ef408761ae
from qt/qtbase.

Change-Id: Ia7e9a94b3445d9362a60a36d5e4dda878ab0f7a5
Reviewed-by: J-P Nurmi <jpnurmi@digia.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
QMenu: Enable sloppy submenu mouse navigation

Since we're in the 21st century, we set QCommonStyle to return true
to the SH_Menu_SloppySubMenus style hint. This unlocks all the logic
already available in QMenu.

This is a backport of I134c87e348d98d1f46055e0bfef2b4a4a3d2993a
from qt/qtbase and includes some previous enhancements.

Task-number: QTBUG-20094
[ChangeLog][QtWidgets][QMenu] Enable sloppy submenu mouse navigation
Change-Id: If4141a3d849123850e40af92ac5aede9ed767bdf
Reviewed-by: J-P Nurmi <jpnurmi@digia.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
QMenu: Sloppy menu selection should allow hovering separators

Setting the current action to 0 clears the sloppy region and
closes the submenu if we hover a separator on the way to the
submenu popup. Now, we choose not to while the sloppy delay
timer is running.

This is a backport of I9d1b1358fe64c259dc47f35db8fc8f2b19a73153
from qt/qtbase.

Task-number: QTBUG-20094
Change-Id: If4b3cff05a9bcb41cee3e49490d4cc5fc3595821
Reviewed-by: J-P Nurmi <jpnurmi@digia.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
rebuild configure.exe

95f256d: Remove incorrect check for mingw 64 bit
51f77e9: Fix detection of mingw gcc >=4.6

Change-Id: I8e5a7ac1e8c76f346f58e44cf5b9eb781a1ac4c7
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
QPushButton: draw label using the stylesheet's font.

The RenderRule for the stylesheet has the correct font information, it
just wasn't being set on the painter that draws the label.

This is a backport of the Qt 5 commit:
9ad768fd1999780df18551151b9d9fa9c354131c.

Task-number: QTBUG-8990
Change-Id: I4857d6e17b62980782ca7bfdfd0a571a9950f635
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
Add AArch64 support to qfilesystemwatcher_inotify.cpp

Based on a patch by Marcin Juszkiewicz <marcin@juszkiewicz.com.pl>,
licensed under CC0 (aka Public Domain) or BSD license.

Backported from qtbase, commit d5dcd6d16647e4ecac239fa26ade5963f0e3f933

Change-Id: I0d01a129c039250ac33dc5f984baec9595786211
Reviewed-by: Dmitry Shachnev <mitya57@gmail.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>