Revision control

++ QtSerialPort 5.5 introduces a few new features and improvements as well as
++ bugfixes over the 5.4.x series. For more details, refer to the online
++ documentation included in this distribution. The documentation is also available
++ online:
++
++
++ The QtSerialPort version 5.5 series is binary compatible with the 5.4.x series.
++ Applications compiled for 5.4 will continue to run with 5.5.
++
++ 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 *
++ ****************************************************************************
++
++ - Now the version for Qt 4 always will be in the separate "qt4-dev" branch.
++
++ - QSerialPort:
++ * [QTBUG-34946] The streaming does not stop anymore when the window is
++ resizing or moving.
++ * Added new lock directories for the *nix-specific platforms.
++ * The method QSP::clearError() now clears the error string.
++ * [QTBUG-45338] It is now possible to open the serial port on OS X when
++ the App Sandbox is used.
++ * [QTBUG-46066] The QT_DISABLE_DEPRECATED_BEFORE=QT_VERSION macro does
++ not lead to compilation failure now.