Doc: Remove QX11EmbedContainer/QX11EmbedWidget snippets

- These classes no longer exist in Qt 5
- These snippets are not actually used in current docs

Change-Id: I155e70b09933417c8ce1b14d033fb1c17a1c32db
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
QNX: Fix QTreeView autotest

The style is dpi dependent. I.e. on high dpi displays the pixel size of
sections and rows of a QTreeView will be larger.

Change-Id: I7477bfdd641d4db67973cafef5147f026f72c111
Reviewed-by: Bernd Weimer <bweimer@blackberry.com>
Reviewed-by: Sergio Ahumada <sahumada@blackberry.com>
Restrict QFontComboBox's popup width to screen width

Change-Id: I5a92308beb2f245d9f031918bb8154757316ef56
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
QNX: Fix QWizard autotest

In "task177022_setFixedSize" show was replaced with showNormal because on QNX
and some other platforms show translates to a showFullScreen.
For BlackBerry the test is skipped because the first top level window
is always forced into fullscreen mode.

Change-Id: I9df37c6bc47b47cbad4a1623b3eafa723abc6714
Reviewed-by: Bernd Weimer <bweimer@blackberry.com>
Reviewed-by: Sergio Ahumada <sahumada@blackberry.com>
QNX: Fix QGuiApplication autotests

On QNX a window can only be activated if it has either a egl surface
or a raster backingstore.

Change-Id: If075093e39f1553eb8b25e35f7d372b1b15aa8af
Reviewed-by: Sergio Ahumada <sahumada@blackberry.com>
QNX: Fix QMdiArea autotests

Change-Id: I1c4b0bbe4984182c217ee97957e2f21f43caf116
Reviewed-by: Sergio Ahumada <sahumada@blackberry.com>
Reviewed-by: Bernd Weimer <bweimer@blackberry.com>
Fix documentation of QRegExp

Change-Id: I6c9083941eb791eb34ce982986e3e04ac5a765ad
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@digia.com>
QNX: Fix QDir::entryInfoList()

If D_FLAG_FILTER is set, duplicate name entries are filtered out, so
this flag has to be set along with D_FLAG_STAT in the call to dircntl.

Also releaved dependencies between defines__EXT_QNX__READDIR_R,
__EXT_QNX__READDIR64_R and _POSIX_THREAD_SAFE_FUNCTIONS

Task-number: QTBUG-38189
Change-Id: I4e620cb9967e3d1baf6f2109a7c83703702f805b
Reviewed-by: Thomas McGuire <thomas.mcguire@kdab.com>