Revision control
++ Qt 5.3.1 is a bug-fix release. It maintains both forward and backward
++ compatibility (source and binary) with Qt 5.3.0.
++
++ For more details, refer to the online documentation included in this
++ distribution. The documentation is also available online:
++
++
++ The Qt version 5.3 series is binary compatible with the 5.2.x series.
++ Applications compiled for 5.2 will continue to run with 5.3.
++
++ Some of the changes listed in this file include issue tracking numbers
++ corresponding to tasks in the Qt Bug Tracker:
++
++
++ Each of these identifiers can be entered in the bug tracker to obtain more
++ information about a particular change.
++
++ ****************************************************************************
++ * Library *
++ ****************************************************************************
++
++ - Use Q_NULLPTR for null pointer purposes with NULL fallback for Qt4.
++ - The WinCE implementation is moved into its own separate module.
++ - Disabled automatic header precompilation for QtSerialPort, since it is
++ more expensive than the benefit.
++
++ - QSerialPortInfo:
++ * Added support for the VID/PID of PCI serial ports from the Sysfs backend.
++ * Fixed mixed up vendor and product identifiers by using of Udev backend.
++
++ - QSerialPort:
++ * Added support of custom baud rate on QNX.
++ * Improved the error handling.
++ * QTimer is now used with zero interval to defer starting of writing on
++ Windows to next event-loop entering. It allow to accumulate a multiple
++ write() calls to futher write of whole buffer instead of chunks.
++ * [QTBUG-36758] Fixed the waitForBytesWritten() behavior on Windows.
++ * [QTBUG-38640] Now a states of the DTR/RTS signals are initialized after
++ opening.
++ * [QTBUG-39369] Do not emit the error() in destructor of QSerialPort; this
++ error signal may then call slots of already (partially) deleted objects.
++ * Fixed the error message for TimeoutError on Windows (which has the
++ WAIT_TIMEOUT error code).
++ * [QTBUG-39314] Fixed regression of waitForReadyRead() method on Windows.
++ * Added handling of the ENOENT error code in uclibc on Linux. Now this error
++ is interpreted as DeviceNotFoundError.
++