Updated changelog

(cherry picked from commit 14249fb4)

dist/changes-1.2.1

@@ -11,6 +11,9 @@ Building and Running
    * Fixed crash when clicking on the Build Settings tab with an invalid Qt version.
    * Fixed crash when removing an active .pro file outside Qt Creator.
 
+Editor
+   * Fixed crash when completing function-like arguments
+
 Debugging
    * Fixed problem with GDB debugging after first debugging run
    * Fixed display of debugging helper status in some cases
@@ -20,6 +23,6 @@ Debugging
    * Fixed regression in QVariant dumper
    * Removed QtGui dependency from debugging helpers
    * Made it possible to build the debugging helpers for Qt 4.4 again
-   
+
 I18N:
    * Fixed Russian translation