Update 4.8.2 changes file

Change-Id: I38369e2404150da9a9edb198cdecaab50d1f137f
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>

dist/changes-4.8.2.md

@@ -7,6 +7,10 @@ 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 origin/v4.8.1..v4.8.2
 
+General
+
+* Fixed UI for choosing executable for external tools (QTCREATORBUG-21937)
+
 Editing
 
 * Fixed highlighting of search results of regular expression search
@@ -20,6 +24,10 @@ Autotools Projects
 C++ Support
 
 * Fixed crash when expanding macros (QTCREATORBUG-21642)
+* Fixed crash in preprocessor (QTCREATORBUG-21981)
+* Fixed infinite loop when resolving pointer types (QTCREATORBUG-22010)
+* Fixed cursor position after completion of functions without arguments
+  (QTCREATORBUG-21841)
 
 QML Support
 
@@ -38,6 +46,7 @@ Debugging
 Qt Quick Designer
 
 * Added support for more JavaScript functions in `.ui.qml` files
+* Fixed crash with gradients and Qt Quick 5.12 (QDS-472)
 
 Test Integration
 
@@ -55,16 +64,20 @@ macOS
 Android
 
 * Fixed upload of GDB server on some devices (QTCREATORBUG-21317)
+* Fixed crash on exiting debugger (QTCREATORBUG-21684)
 
 Credits for these changes go to:  
+Andre Hartmann  
 André Pönitz  
 Christian Kandeler  
 Christian Stenger  
 David Schulz  
 Eike Ziller  
 Ivan Donchevskii  
+Kirill Burtsev  
 Leena Miettinen  
 Liang Qi  
+Nikolai Kosjar  
 Oliver Wolff  
 Raoul Hecky  
 Robert Löhning