Some fixes

* make qt configuration in CMake more flexible
* move creating of symlinks on windows from post build event to cmake
* create symlinks for test data in cmake on windows
* switch to 7zip for extraction python indexer
* make results of sourcegrouptests case insensitive

script/download_python_indexer.sh

@@ -87,7 +87,8 @@ if [ $PLATFORM == "linux" ]; then
 elif [ $PLATFORM == "osx" ]; then
 	unzip -d $TEMP_PATH $TEMP_PATH/$PACKAGE_FILE_NAME
 elif [ $PLATFORM == "windows" ]; then
-	winrar x $TEMP_PATH/$PACKAGE_FILE_NAME $TEMP_PATH
+	echo -e $INFO "extracting file: $TEMP_PATH/$PACKAGE_FILE_NAME to $TEMP_PATH"
+	7z.exe x -o$TEMP_PATH $TEMP_PATH/$PACKAGE_FILE_NAME
 fi