Fixed memory leak in QXmlStreamReader

Fixed memory leak caused by repetitive usage of the same
QXmlStreamReader instance.

Task-number: QTBUG-27889
Change-Id: I673f4d26bae1503cb43e972f95b418dbf6d6fd89
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
Avoid setting initialNameFilter when mode is Directory

Task-number: QTBUG-30001

Change-Id: I5e854ce99137bd9d718cb2052f2c8dc1fb92b78f
Reviewed-by: Andy Shaw <andy.shaw@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Return -1 as the API documents it for socket issues

Task-number: QTBUG-30024
Change-Id: I51498e6d74ab139134abfb94f35647e995319ee8
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
qdoc: Maintain correct nesting level for QML parsing

qdoc was not incrementing the nesting level when parsing
a UiObjectBinding, which can contain a component definition.
qdoc now increments the nesting level when starting to vidit
a UiObjectBinding and decrements it when ending the visit.

Note this fix does not stop qdoc from reporting that public
signal handlers have not been documented. If that is to be
changed, it will be done separately.

Task-number: QTBUG-29993
Change-Id: Ibd5ef81082e989652b3a15dcc95080a2757e0077
Reviewed-by: J-P Nurmi <jpnurmi@digia.com>
Doc: fixed snippet issues with customcompleter.qdoc

Edited customcompleter.qdoc (paths snippets + ingroup statement)
Moved customcompleter.qdoc to widgets/tools/customcompleter/doc/src
Moved png files to doc/qtwidgets/images

Task-number: QTBUG-29101

Change-Id: Iab66f178b92321257c4eb0e4e9704bb1e3043ef6
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
Reviewed-by: Laszlo Papp <lpapp@kde.org>
Delete the reference of the QNX screen in child windows on deletion

Change-Id: Ic3e5deaeabe282ff44400aba80f8746067473030
Reviewed-by: Kevin Krammer <kevin.krammer@kdab.com>
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
Do not build qsharedmemory and qsystemsemaphore autotests on QNX

QSharedMemory and QSystemSemaphore are not available on QNX so the autotests can not be built.
Change-Id: Ibfb405f951d21342d64bf215cedc203a8cefe070
Reviewed-by: Wolfgang Bremer <wbremer@rim.com>
Reviewed-by: Thomas McGuire <thomas.mcguire@kdab.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Workaround a bug in mktime on QNX

Under certain circumstances, mktime failes to convert the tm struct into secs since epoch.
This is a workaround and fixes the qdatetime and qqmllocale autotests.

Change-Id: If99385142a049c5315429dca177df7fc8e947d55
Reviewed-by: Thomas McGuire <thomas.mcguire@kdab.com>
Reviewed-by: Wolfgang Bremer <wbremer@rim.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Fix potential crash in accessibility key event handling

Change-Id: Id3eec6c83d7f8ece186e6b5bc02771c00893294b
Reviewed-by: Jan Arve Sæther <jan-arve.saether@digia.com>