updated the changelog with changes from the unstable branch

Documentation/DeveloperHelpSources/changelog.docu

@@ -14,6 +14,11 @@
      - <b>ACG</b>
          - Clamp shininess in Materialnode (caused GL Errors)
          - Better Material support in Materialnode (emissive and refractive materials)
+         - Fixed NameClash on Windows OS if ProjectName was similar to cloned rootDirectory name
+         - Fixed OpenGL Format warning
+         - Parse command line before QApplication is instantiated
+         - Fixed missing output to stderr on windows
+         - Minor code cleanup
      - <b>Plugins</b>
          - File-OBJ
             - Read emissive and refractive materials