[update] update to upstream commit e4484bb
Squashed 'qtbase/' changes from ebea15c..68fd687

68fd687 make requirement for -private suffix explicit
de54d7b headersclean: process private modules correctly
215f137 Restore header installation on Mac to always install to $includedir
cb79be2 remove qt_no_framework_direct_includes from qt build
933ae0a install qpa headers into frameworks as well
a3feba6 fix location of private headers in mac bundles
2f4cd18 Add Q_REVISION(1) to QWindow::alert().
12d45cd QWindow min/max width/height, contentOrientation are not new in 5.1
f7a7859 Deprecate Mac libc++ mkspecs
0fa29e2 Avoid crash when QOpenGLContext is destroyed before the VAO
f63369d Doc: Fixed link to "Downloads" page.
4a3edb5 QNX: Fix screen rotation
505617b mac frameworks: don't create bogus symlinks
9e89349 Fix compilation with ICC 13.1: the MSVC 2005 & 2008 code is bad
6086ff0 Replace win32-icc/qplatformdefs.h with the MSVC one
440a227 Fix win32-icc build: _CHAR16T is not an indication of C++11 support
8f8c29b Android: Fix initial window size for raster backend
7e33ec9 BlackBerry: fix delayed root window posting on OpenGL
e3cf87b Mac OSX: get the correct key code when the control key is pressed
3ffc86e install qconfig.h into framework bundles
01270cf fix bundled header creation for debug builds
6d61dfd disable non-framework header install also for debug builds
7ea8c9d install private headers into frameworks
c0d5a4e don't needlessly do QMAKE_BUNDLE_DATA+=FRAMEWORK_HEADERS
7090d4a un-nest conditionals
d0e82ed mac framework build: always set QMAKE_FRAMEWORKPATH
bd97768 Update for the newest Darwin-family operating systems.
1723a98 Fixed testbuild with QT_NO_CURSOR
74ca603 Fix QDir::mkpath failing for drive paths on Windows
d0d158f Mac: Ensure that C++11 is always used when linking against a static Qt build
d319057 Use BSD licensing for QtOpenGLExtensions instead of LGPL
a4f7bb8 Widgets: Set qt_button_down for each press.
91ca90d CMake: Fix test for value starting with -L
531b7d3 Fix missing shortcuts for WindowContainers
ad43d9a Fix missing focus events for mapped child windows
07a727f Android: handle keyboard connect/disconnect
172fa29 fix LD_LIBRARY_PATH manipulation in uic calls not being make-escaped
f5e0ec5 update QtNetwork changelog for 5.1.0
021264a Tagged all those examples that work on an Android device
732dcfe QFactoryLoader: Release unused libraries.
cf8647d Remove unused member QFactoryLoaderPrivate::keyList.
a5ecb0b Android Mute and FastForward keys mapped wrong
d135a31 make Makefiles not depend on .qmake.super
17c38b2 fix rcc & uic .depend_commands
9d48f14 always $-escape make commands
c932f2c fix command over-escaping in vcproj files
13e01fd assemble the tool commands at use time, after all
69554e4 OSX: Disable window restoration for the Mac color panel
e083aed Cocoa color dialog cannot be modal, but should show anyway
cf98d1e OSX color dialog can be accepted repeatedly
dd050d3 network requests: do not access 1st byte of empty byte array
19ed991 Doc: Remove Tweet Search demo from the list of highlighted examples
703cca8 Adjust the cmake files to find the dlls in the bin dir.
3e2cd8e fix QFileSystemEngine::createDirectory race condition
0bc96d1 Widgets: Do not create QWindow in createTLExtra().
b6f2442 Fix another type of crash when dragging QDockWidget in and out
443253c Let QTemporaryDir::stressTest() run in temporary directory.
eab6700 Fix crash for pressing Ctrl+C in a message box
2d9cd8e Fix xkbcommon.pri not to override QMAKE_CFLAGS
6bf5ef0 remove overquoting of extra compiler arguments
7f6c864 remove overquoting of extra compiler commands
aa3f1cc fix QMAKE_COMPILER fallback for clang specs
e276509 don't claim that we need perl for shadow builds any more
d8f4abe Cocoa: Make QWidget::showNormal() work on minimized windows
bfab741 Cocoa: Make sure internal minimized state is up to date
b8c007e Cocoa: Update window state when maximizing from the title bar
7ee15bf Cocoa: Make sure we update internal window fullscreen state
3b5954e Cocoa: Remove compilation warning
80d24a7 Update support status for older Mac OS X platforms.
c47b665 Qdoc: replaced example file qt.qdocconf with qtgui.qdocconf
70cb5db Fix gcc warnings about unused-value
85b4f0d Avoid floating point exceptions in rasterizeLine.
425af59 Disable long press on Android
900cccf Fix drawing of 0-width polylines from outside the devicerect.
1937012 Don't test existence of private header directories for mac frameworks
f2ea453 qdoc: QGLFrameBufferObject::bindDefault() was marked \internal
e1109df Remove the use of CMAKE_FIND_ROOT_PATH.
d7b79ff mkspecs/qml_plugin: adding -nonrelocatable flag to qmldump call
a90d932 Windows save file dialog: Set default suffix only once.
b2a0a14 Fix issue when QKeyEvent::text() was returning empty string
074c5c9 Doc: Fixed snippet issues in QDoc documentation
45d8bf3 Doc: Mark QOpenGLFunctions_4_1_Core as a wrapper class
4fd568f redo include path logic for pre-generated headers
f3331e1 reshuffle path setup
81b942f use correct variable for library base path
f533941 update some comments relating to forwarding module pri files
b35ea87 put ANGLE includes in a QtANGLE subdir
366d276 allow modules to extend their MODULE_{,PRIVATE_}INCLUDES
150408e don't process ANGLE and zlib headers like real qt modules
69fa001 use qtconcurrent instead of qtgui in test code

git-subtree-dir: qtbase
git-subtree-split: 68fd6878ab5f40ee00dad00e3f46f9a3368ef5d8
Merge commit 'e8a80f27c6154fb39634b5f6d0bed6b6d81f69fe'