Revision control

++ Qt 5.7 introduces many new features and improvements as well as bugfixes
++ over the 5.6.x series. Also, there is a change in the licensing terms.
++ For more details, refer to the online documentation included in this
++ distribution. The documentation is also available online:
++
++
++ The Qt version 5.7 series is binary compatible with the 5.6.x series.
++ Applications compiled for 5.6 will continue to run with 5.7.
++
++ 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.
++
++ ****************************************************************************
++ * Important License Changes *
++ ****************************************************************************
++
++ This module is no longer available under LGPLv2.1. The libraries are
++ now available under the following licenses:
++ * Commercial License
++ * GNU General Public License v2.0 (LICENSE.GPL2) and later
++ * GNU Lesser General Public License v3.0 (LICENSE.LGPL3)
++
++ The tools are now available under the following licenses:
++ * Commercial License
++ * GNU General Public License 3.0 (LICENSE.GPL3) with exceptions
++ described in The Qt Company GPL Exception 1.0 (LICENSE.GPL3-EXCEPT)
++
++ ****************************************************************************
++ * General *
++ ****************************************************************************
++ - This release contains only minor improvements.