Add changes-5.1.0 file

Change-Id: I01369d608876e69da57839165283ed343b683e88
Reviewed-by: Iikka Eklund <iikka.eklund@digia.com>
Reviewed-by: Yoann Lopes <yoann.lopes@digia.com>

dist/changes-5.1.0

@@ -0,0 +1,38 @@
+Qt 5.1 introduces many new features and improvements as well as bugfixes
+over the 5.0.x series. For more details, refer to the online documentation
+included in this distribution. The documentation is also available online:
+
+  http://qt-project.org/doc/qt-5.1
+
+The Qt version 5.1 series is binary compatible with the 5.0.x series.
+Applications compiled for 5.0 will continue to run with 5.1.
+
+Some of the changes listed in this file include issue tracking numbers
+corresponding to tasks in the Qt Bug Tracker:
+
+  http://bugreports.qt-project.org/
+
+Each of these identifiers can be entered in the bug tracker to obtain more
+information about a particular change.
+
+****************************************************************************
+*                           General                                        *
+****************************************************************************
+
+ - Fixed signal not being emitted in QDeclarativeCameraFocus.
+ - Decouple qmediametadata.h from qmultimedia.h
+ - Reset VideoSurface pointer when deleted
+ - Fix crash on idle status change with 64 bit architectures.
+ - Add support for m3u8 playlist formats
+ - Fix calculation bug in QWaveDecoder.
+
+ - [QTBUG-28047] Make directshow-plugin available.
+ - [QTBUG-28589] Add error handling in image capturing in camera
+ - [QTBUG-30411] AVFoundation: Emit error when media fails to load
+
+Qt for Android
+--------------
+
+ - Add libQt5MultimediaQuick_p to the list of dependencies.
+ - Fixed crash when resetting the video surface.
+ - Add MediaPlayer support for Android