Add changes file for 3.6.1

Change-Id: If31dcec2a68ed29b565150f136fc1b2554a34235
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@theqtcompany.com>

dist/changes-3.6.1.md

+Qt Creator version 3.6.1 contains bug fixes.
+
+The most important changes are listed in this document. For a complete
+list of changes, see the Git log for the Qt Creator sources that
+you can check out from the public Git repository. For example:
+
+    git clone git://code.qt.io/qt-creator/qt-creator.git
+    git log --cherry-pick --pretty=oneline v3.6.0..v3.6.1
+
+Editing
+
+* Fixed issues with setting font size (QTCREATORBUG-15608, QTCREATORBUG-15609)
+
+Help
+
+* Fixed opening external links (QTCREATORBUG-15491)
+
+C++ Support
+
+* Clang code model
+    * Fixed crash when closing many documents fast (QTCREATORBUG-15532)
+    * Fixed that HTML code was shown in completion tool tip (QTCREATORBUG-15630)
+    * Fixed highlighting for using a namespaced type (QTCREATORBUG-15271)
+    * Fixed highlighting of current parameter in function signature tool tip
+      (QTCREATORBUG-15108)
+    * Fixed that template parameters were not shown in function signature tool
+      tip (QTCREATORBUG-15286)
+
+Qt Support
+
+* Fixed crash when updating code model for `.ui` files (QTCREATORBUG-15672)
+
+QML Support
+
+* Added Qt 5.6 as an option to the wizards
+
+Debugging
+
+* LLDB
+    * Fixed that switching thread did not update stack view (QTCREATORBUG-15587)
+* GDB/MinGW
+    * Fixed editing values while debugging
+
+Beautifier
+
+* Fixed formatting with `clang-format`
+
+Platform Specific
+
+Windows
+
+* Added detection of Microsoft Visual C++ Build Tools
+* Fixed issue with console applications that run only for a short time
+  `Cannot obtain a handle to the inferior: The parameter is incorrect`
+  (QTCREATORBUG-13042)
+* Fixed that debug messages could get lost after the application finished
+  (QTCREATORBUG-15546)
+
+Android
+
+* Fixed issues with Gradle wrapper (QTCREATORBUG-15568)